diff --git a/SAS/TMSS/backend/services/scheduling/lib/constraints/template_constraints_v1.py b/SAS/TMSS/backend/services/scheduling/lib/constraints/template_constraints_v1.py
index 9922728c7861b4c3091dba033fe1ec2bbdb77740..d2562d2f2d5b4156d7a81cea9d9d62139f49cc61 100644
--- a/SAS/TMSS/backend/services/scheduling/lib/constraints/template_constraints_v1.py
+++ b/SAS/TMSS/backend/services/scheduling/lib/constraints/template_constraints_v1.py
@@ -537,11 +537,11 @@ def compute_scheduling_unit_scores(scheduling_unit: models.SchedulingUnitBluepri
               'time': 1.0,
               'daily': 1.0 }
 
-    # add individual scheduling_unit priority_rank
-    scores['scheduling_unit_priority_rank'] = scheduling_unit.priority_rank
+    # add individual scheduling_unit rank
+    scores['scheduling_unit_rank'] = scheduling_unit.rank
 
     # add "common" scores which do not depend on constraints, such as project rank and creation date
-    scores['project_rank'] = scheduling_unit.project.priority_rank
+    scores['rank'] = scheduling_unit.project.rank
     scores['age'] = (datetime.utcnow() - scheduling_unit.created_at).total_seconds()
 
     earliest_possible_start_time = get_earliest_possible_start_time(scheduling_unit, lower_bound)
diff --git a/SAS/TMSS/backend/services/scheduling/lib/dynamic_scheduling.py b/SAS/TMSS/backend/services/scheduling/lib/dynamic_scheduling.py
index c063fef88d3a3e4ccf54b0b9d2cdde999e58531c..6de497892f9befcd4bb62c6a55fded310e1fc585 100644
--- a/SAS/TMSS/backend/services/scheduling/lib/dynamic_scheduling.py
+++ b/SAS/TMSS/backend/services/scheduling/lib/dynamic_scheduling.py
@@ -544,7 +544,7 @@ class TMSSDynamicSchedulingMessageHandler(TMSSEventMessageHandler):
     def onSchedulingUnitBlueprintConstraintsUpdated(self, id: int, scheduling_constraints_doc: dict):
         self.onSchedulingUnitBlueprintConstraintsRankOrQueueUpdated(id)
 
-    def onSchedulingUnitBlueprintPriorityRankUpdated(self, id: int, priority_rank: float):
+    def onSchedulingUnitBlueprintRankUpdated(self, id: int, rank: float):
         self.onSchedulingUnitBlueprintConstraintsRankOrQueueUpdated(id)
 
     def onSchedulingUnitBlueprintPriorityQueueUpdated(self, id: int, priority_queue: str):
@@ -608,8 +608,8 @@ class TMSSDynamicSchedulingMessageHandler(TMSSEventMessageHandler):
         self.scheduler.trigger()
 
 
-    def onProjectPriorityRankUpdated(self, name: str, priority_rank: float):
-        logger.info("project '%s' priority_rank changed to %s", name, priority_rank)
+    def onProjectRankUpdated(self, name: str, rank: float):
+        logger.info("project '%s' rank changed to %s", name, rank)
         self.scheduler.trigger()
 
 
diff --git a/SAS/TMSS/backend/services/scheduling/test/t_dynamic_scheduling.py b/SAS/TMSS/backend/services/scheduling/test/t_dynamic_scheduling.py
index fee5838d442e85785842ac408187f7182375a995..8e28ffb00af13ffc535760114e72f89073c3d02e 100755
--- a/SAS/TMSS/backend/services/scheduling/test/t_dynamic_scheduling.py
+++ b/SAS/TMSS/backend/services/scheduling/test/t_dynamic_scheduling.py
@@ -76,9 +76,9 @@ class BaseDynamicSchedulingTestCase(unittest.TestCase):
     def setUpClass(cls) -> None:
         super().setUpClass()
         # make some re-usable projects with high/low priority
-        cls.project_low = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), priority_rank=1))
-        cls.project_medium = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), priority_rank=2))
-        cls.project_high = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), priority_rank=3))
+        cls.project_low = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), rank=1))
+        cls.project_medium = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), rank=2))
+        cls.project_high = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), rank=3))
         cls.scheduling_set_low = models.SchedulingSet.objects.create(**SchedulingSet_test_data(project=cls.project_low))
         cls.scheduling_set_medium = models.SchedulingSet.objects.create(**SchedulingSet_test_data(project=cls.project_medium))
         cls.scheduling_set_high = models.SchedulingSet.objects.create(**SchedulingSet_test_data(project=cls.project_high))
@@ -138,7 +138,7 @@ class BaseDynamicSchedulingTestCase(unittest.TestCase):
                                                                           scheduling_constraints_template=constraints_template,
                                                                           interrupts_telescope=interrupts_telescope,
                                                                           priority_queue=priority_queue,
-                                                                          priority_rank=unit_priority)
+                                                                          rank=unit_priority)
 
         scheduling_unit_draft = update_task_graph_from_specifications_doc(scheduling_unit_draft, scheduling_unit_spec)
         return scheduling_unit_draft
@@ -915,7 +915,7 @@ class TestDynamicScheduling(BaseDynamicSchedulingTestCase):
         for queue in (queue_B, queue_A):
             for scheduling_set in (self.scheduling_set_low, self.scheduling_set_medium, self.scheduling_set_high):
                 for unit_prio in (0.9, 1.0):
-                    scheduling_unit_draft = self.create_simple_observation_scheduling_unit('SU queue=%s project_prio=%s unit_prio=%s' % (queue.value, scheduling_set.project.priority_rank, unit_prio),
+                    scheduling_unit_draft = self.create_simple_observation_scheduling_unit('SU queue=%s project_prio=%s unit_prio=%s' % (queue.value, scheduling_set.project.rank, unit_prio),
                                                                                            scheduling_set=scheduling_set,
                                                                                            priority_queue=queue,
                                                                                            unit_priority=unit_prio)
@@ -952,7 +952,7 @@ class TestDynamicScheduling(BaseDynamicSchedulingTestCase):
                     self.assertEqual(expected_project, scheduled_scheduling_unit.project)
 
                     # check that within a queue, and equal project priority, the unit priority takes precedence
-                    self.assertAlmostEqual(expected_unit_prio, scheduled_scheduling_unit.priority_rank, 2)
+                    self.assertAlmostEqual(expected_unit_prio, scheduled_scheduling_unit.rank, 2)
 
                     # check that we are scheduled after the previous one
                     if prev_scheduled_scheduling_unit is not None:
@@ -975,9 +975,9 @@ class TestDynamicScheduling(BaseDynamicSchedulingTestCase):
         constraints_template = models.SchedulingConstraintsTemplate.objects.get(name="constraints", version=1)
 
         # start with weight su_prio=0 and project_prio=0.9
-        wf_scheduling_unit_priority_rank, created = models.SchedulingConstraintsWeightFactor.objects.get_or_create(scheduling_constraints_template=constraints_template, constraint_name="scheduling_unit_priority_rank")
-        wf_scheduling_unit_priority_rank.weight = 0
-        wf_scheduling_unit_priority_rank.save()
+        wf_scheduling_unit_rank, created = models.SchedulingConstraintsWeightFactor.objects.get_or_create(scheduling_constraints_template=constraints_template, constraint_name="scheduling_unit_rank")
+        wf_scheduling_unit_rank.weight = 0
+        wf_scheduling_unit_rank.save()
 
         wf_project_rank, created = models.SchedulingConstraintsWeightFactor.objects.get_or_create(scheduling_constraints_template=constraints_template, constraint_name="project_rank")
         wf_project_rank.weight = 0.9
@@ -987,9 +987,9 @@ class TestDynamicScheduling(BaseDynamicSchedulingTestCase):
         for scheduling_set in (self.scheduling_set_high, self.scheduling_set_medium):
             project = scheduling_set.project
             # 'invert' the unit_prio in comparison to project
-            unit_prio = self.project_medium.priority_rank if project==self.project_high else self.project_high.priority_rank
+            unit_prio = self.project_medium.rank if project==self.project_high else self.project_high.rank
 
-            scheduling_unit_draft = self.create_simple_observation_scheduling_unit('SU project_prio=%s unit_prio=%s' % (project.priority_rank, unit_prio),
+            scheduling_unit_draft = self.create_simple_observation_scheduling_unit('SU project_prio=%s unit_prio=%s' % (project.rank, unit_prio),
                                                                                    scheduling_set=scheduling_set,
                                                                                    unit_priority=unit_prio,
                                                                                    )
@@ -1016,8 +1016,8 @@ class TestDynamicScheduling(BaseDynamicSchedulingTestCase):
             self.assertEqual(models.SchedulingUnitStatus.Choices.SCHEDULED.value, scheduled_unit_blueprint.status.value)
 
             # change the weightfactors (swap them compared to above)
-            wf_scheduling_unit_priority_rank.weight = 1
-            wf_scheduling_unit_priority_rank.save()
+            wf_scheduling_unit_rank.weight = 1
+            wf_scheduling_unit_rank.save()
             wf_project_rank.weight = 0
             wf_project_rank.save()
 
@@ -1030,15 +1030,15 @@ class TestDynamicScheduling(BaseDynamicSchedulingTestCase):
             self.assertEqual(models.SchedulingUnitStatus.Choices.SCHEDULED.value, scheduled_unit_blueprint.status.value)
 
 
-    def test_scheduling_unit_priority_rank(self):
+    def test_scheduling_unit_rank(self):
         """
-        When all other constraints/priorities/queues are equal, the scheduling_unit's individual priority_rank should determine the order.
+        When all other constraints/priorities/queues are equal, the scheduling_unit's individual rank should determine the order.
         """
         LOW_RANK = 500
         HIGH_RANK = 1000
-        for priority_rank in (LOW_RANK, HIGH_RANK):
-            scheduling_unit_draft = self.create_simple_observation_scheduling_unit('scheduling_unit priority_rank=%s' % (priority_rank,), scheduling_set=self.scheduling_set_low)
-            scheduling_unit_draft.priority_rank = priority_rank
+        for rank in (LOW_RANK, HIGH_RANK):
+            scheduling_unit_draft = self.create_simple_observation_scheduling_unit('scheduling_unit rank=%s' % (rank,), scheduling_set=self.scheduling_set_low)
+            scheduling_unit_draft.rank = rank
             scheduling_unit_draft.save()
 
             scheduling_unit_blueprint = create_scheduling_unit_blueprint_and_tasks_and_subtasks_from_scheduling_unit_draft(scheduling_unit_draft)
@@ -1046,18 +1046,18 @@ class TestDynamicScheduling(BaseDynamicSchedulingTestCase):
             scheduling_unit_blueprint.scheduling_constraints_doc = {'scheduler': 'dynamic'}
             scheduling_unit_blueprint.save()
 
-            self.assertEqual(scheduling_unit_draft.priority_rank, scheduling_unit_blueprint.priority_rank)
+            self.assertEqual(scheduling_unit_draft.rank, scheduling_unit_blueprint.rank)
 
         scheduled_scheduling_unit = self.scheduler.do_dynamic_schedule()
         self.assertIsNotNone(scheduled_scheduling_unit)
         self.assertEqual(scheduled_scheduling_unit.status.value, 'scheduled')
-        self.assertEqual(HIGH_RANK, scheduled_scheduling_unit.priority_rank)
+        self.assertEqual(HIGH_RANK, scheduled_scheduling_unit.rank)
         cancel_scheduling_unit_blueprint(scheduled_scheduling_unit)
 
         scheduled_scheduling_unit = self.scheduler.do_dynamic_schedule()
         self.assertIsNotNone(scheduled_scheduling_unit)
         self.assertEqual(scheduled_scheduling_unit.status.value, 'scheduled')
-        self.assertEqual(LOW_RANK, scheduled_scheduling_unit.priority_rank)
+        self.assertEqual(LOW_RANK, scheduled_scheduling_unit.rank)
 
 
     def test_fixed_time_constraint_is_preventing_scheduling_unit_from_being_scheduled_dynamically(self):
diff --git a/SAS/TMSS/backend/services/scheduling/test/t_scheduling_constraints.py b/SAS/TMSS/backend/services/scheduling/test/t_scheduling_constraints.py
index a87f4c96e0a2307698372cd2ee7182cab6b5e622..68c7f0ba75c2fd4a9febc839950154bd5d3db549 100755
--- a/SAS/TMSS/backend/services/scheduling/test/t_scheduling_constraints.py
+++ b/SAS/TMSS/backend/services/scheduling/test/t_scheduling_constraints.py
@@ -76,7 +76,7 @@ class BaseSchedulingConstraintsTestCase(unittest.TestCase):
     def setUpClass(cls) -> None:
         super().setUpClass()
         # make some re-usable projects with high/low priority
-        cls.project = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), priority_rank=3))
+        cls.project = models.Project.objects.create(**Project_test_data("dynamic scheduling test project %s"% (uuid.uuid4(),), rank=3))
         cls.scheduling_set = models.SchedulingSet.objects.create(**SchedulingSet_test_data(project=cls.project))
 
         cls.scheduler = Scheduler()
diff --git a/SAS/TMSS/backend/services/tmss_postgres_listener/lib/tmss_postgres_listener.py b/SAS/TMSS/backend/services/tmss_postgres_listener/lib/tmss_postgres_listener.py
index baf9c8c969bb841182acaec3054821f65cac2169..780e098a8f9fb74fa25117add26438beda9e1853 100644
--- a/SAS/TMSS/backend/services/tmss_postgres_listener/lib/tmss_postgres_listener.py
+++ b/SAS/TMSS/backend/services/tmss_postgres_listener/lib/tmss_postgres_listener.py
@@ -123,8 +123,8 @@ class TMSSPGListener(PostgresListener):
         self.executeQuery(makePostgresNotificationQueries('', 'tmssapp_schedulingunitblueprint', 'update', column_name='priority_queue_id', quote_column_value=True))
         self.subscribe('tmssapp_schedulingunitblueprint_update_priority_queue_id', self.onSchedulingUnitBlueprintPriorityQueueUpdated)
 
-        self.executeQuery(makePostgresNotificationQueries('', 'tmssapp_schedulingunitblueprint', 'update', column_name='priority_rank', quote_column_value=False))
-        self.subscribe('tmssapp_schedulingunitblueprint_update_priority_rank', self.onSchedulingUnitBlueprintPriorityRankUpdated)
+        self.executeQuery(makePostgresNotificationQueries('', 'tmssapp_schedulingunitblueprint', 'update', column_name='rank', quote_column_value=False))
+        self.subscribe('tmssapp_schedulingunitblueprint_update_rank', self.onSchedulingUnitBlueprintRankUpdated)
 
 
         # SchedulingConstraintsWeightFactor
@@ -159,8 +159,8 @@ class TMSSPGListener(PostgresListener):
         self.executeQuery(makePostgresNotificationQueries('', 'tmssapp_project', 'update', id_column_name="name", quote_id_value=True, column_name='project_state_id', quote_column_value=True))
         self.subscribe('tmssapp_project_update_project_state_id', self.onProjectStatusUpdated)
 
-        self.executeQuery(makePostgresNotificationQueries('', 'tmssapp_project', 'update', id_column_name="name", quote_id_value=True, column_name='priority_rank', quote_column_value=False))
-        self.subscribe('tmssapp_project_update_priority_rank', self.onProjectPriorityRankUpdated)
+        self.executeQuery(makePostgresNotificationQueries('', 'tmssapp_project', 'update', id_column_name="name", quote_id_value=True, column_name='rank', quote_column_value=False))
+        self.subscribe('tmssapp_project_update_rank', self.onProjectRankUpdated)
 
         # ProjectQuotaArchiveLocation
         self.executeQuery(makePostgresNotificationQueries('', 'tmssapp_projectquotaarchivelocation', 'insert'))
@@ -273,8 +273,8 @@ class TMSSPGListener(PostgresListener):
     def onSchedulingUnitBlueprintIngestPermissionGranted(self, payload=None):
         self._sendNotification(TMSS_SCHEDULINGUNITBLUEPRINT_OBJECT_EVENT_PREFIX + '.IngestPermissionGranted', payload)
 
-    def onSchedulingUnitBlueprintPriorityRankUpdated(self, payload=None):
-        self._sendNotification(TMSS_SCHEDULINGUNITBLUEPRINT_OBJECT_EVENT_PREFIX + '.PriorityRank.Updated', payload)
+    def onSchedulingUnitBlueprintRankUpdated(self, payload=None):
+        self._sendNotification(TMSS_SCHEDULINGUNITBLUEPRINT_OBJECT_EVENT_PREFIX + '.Rank.Updated', payload)
 
     def onSchedulingUnitBlueprintPriorityQueueUpdated(self, payload=None):
         payload_dict = json.loads(payload)
@@ -317,8 +317,8 @@ class TMSSPGListener(PostgresListener):
         self._sendNotification(TMSS_PROJECT_STATUS_EVENT_PREFIX+'.'+project_status.capitalize(),
                                {'name': project_name, 'status': project_status})
 
-    def onProjectPriorityRankUpdated(self, payload = None):
-        self._sendNotification(TMSS_PROJECT_OBJECT_EVENT_PREFIX+'.PriorityRank.Updated', payload)
+    def onProjectRankUpdated(self, payload = None):
+        self._sendNotification(TMSS_PROJECT_OBJECT_EVENT_PREFIX+'.Rank.Updated', payload)
 
 
     def onProjectQuotaArchiveLocationInserted(self, payload = None):
diff --git a/SAS/TMSS/backend/src/migrate_momdb_to_tmss.py b/SAS/TMSS/backend/src/migrate_momdb_to_tmss.py
index 3b4103e3a6be537be4b39da6f4aac669fb0edad6..2cbb910899f45d925c1302b0a5b65330851a952f 100755
--- a/SAS/TMSS/backend/src/migrate_momdb_to_tmss.py
+++ b/SAS/TMSS/backend/src/migrate_momdb_to_tmss.py
@@ -204,7 +204,7 @@ def get_project_details_from_momdb():
         details = {"name": mom_details['name'],
                    "description":  "" if not mom_details['description'] else mom_details['description'],
                    "tags": ["migrated_from_MoM", "migration_incomplete"],
-                   "priority_rank": mom_details['priority'],
+                   "rank": mom_details['priority'],
                    "trigger_priority": 1000,
                    "can_trigger": mom_details['allowtriggers'],
                    "private_data": True,  # todo: check project.releasedate and compare to now or how to determine???
@@ -507,7 +507,7 @@ def create_subtask_trees_for_project_in_momdb(project_mom2id, project):
                    #"task_blueprint": task_blueprint,  # ManyToMany, use set()
                    "specifications_template": specifications_template,
                    "tags": ["migrated_from_MoM", "migration_incomplete"],   # todo: set complete once it is verified that all info is present
-                   "priority": project.priority_rank,  # todo: correct to derive from project?
+                   "priority": project.rank,  # todo: correct to derive from project?
                    # optional:
                    "scheduled_start_time": start_time,
                    "scheduled_stop_time": stop_time
diff --git a/SAS/TMSS/backend/src/tmss/tmssapp/populate.py b/SAS/TMSS/backend/src/tmss/tmssapp/populate.py
index fdd3e437daba20e569f86b7b82e6355b52e61e35..fdcdf6b0f89671243f5aa6184b08a9d15e022884 100644
--- a/SAS/TMSS/backend/src/tmss/tmssapp/populate.py
+++ b/SAS/TMSS/backend/src/tmss/tmssapp/populate.py
@@ -473,6 +473,7 @@ def populate_cycles(apps, schema_editor):
 
 
 def populate_projects(apps, schema_editor):
+    return
     for name, rank in (("high", 3), ("normal", 2), ("low", 1)):
         tmss_project = models.Project.objects.create(name=name,
                                                  description="Project for all TMSS tests and commissioning (%s priority)" % (name,),
diff --git a/SAS/TMSS/backend/test/t_tasks.py b/SAS/TMSS/backend/test/t_tasks.py
index d733b2e6c128177bf355b15ba8ba9adfec1f6aa3..88851d9227aa9f4c5c880608c105298e0bd7f7ec 100755
--- a/SAS/TMSS/backend/test/t_tasks.py
+++ b/SAS/TMSS/backend/test/t_tasks.py
@@ -76,7 +76,7 @@ class CreationFromSchedulingUnitDraft(unittest.TestCase):
                                    ingest_permission_required=False,
                                    piggyback_allowed_tbb=True,
                                    piggyback_allowed_aartfaac=True,
-                                   priority_rank=0.25,
+                                   rank=0.25,
                                    interrupts_telescope=False)
         update_task_graph_from_specifications_doc(scheduling_unit_draft, strategy_template.template)
 
@@ -86,7 +86,7 @@ class CreationFromSchedulingUnitDraft(unittest.TestCase):
         self.assertEqual(scheduling_unit_draft.ingest_permission_required, scheduling_unit_blueprint.ingest_permission_required)
         self.assertEqual(scheduling_unit_draft.piggyback_allowed_tbb, scheduling_unit_blueprint.piggyback_allowed_tbb)
         self.assertEqual(scheduling_unit_draft.piggyback_allowed_aartfaac, scheduling_unit_blueprint.piggyback_allowed_aartfaac)
-        self.assertEqual(scheduling_unit_draft.priority_rank, scheduling_unit_blueprint.priority_rank)
+        self.assertEqual(scheduling_unit_draft.rank, scheduling_unit_blueprint.rank)
         self.assertEqual(scheduling_unit_draft.interrupts_telescope, scheduling_unit_blueprint.interrupts_telescope)
 
     def test_create_task_drafts_from_scheduling_unit_draft(self):
@@ -152,7 +152,7 @@ class CreationFromSchedulingUnitDraft(unittest.TestCase):
                                    ingest_permission_required=True,
                                    piggyback_allowed_tbb=False,
                                    piggyback_allowed_aartfaac=False,
-                                   priority_rank=0.19,
+                                   rank=0.19,
                                    interrupts_telescope=False)
 
         update_task_graph_from_specifications_doc(scheduling_unit_draft, strategy_template.template)
@@ -162,7 +162,7 @@ class CreationFromSchedulingUnitDraft(unittest.TestCase):
         self.assertEqual(scheduling_unit_draft.ingest_permission_required, scheduling_unit_blueprint.ingest_permission_required)
         self.assertEqual(scheduling_unit_draft.piggyback_allowed_tbb, scheduling_unit_blueprint.piggyback_allowed_tbb)
         self.assertEqual(scheduling_unit_draft.piggyback_allowed_aartfaac, scheduling_unit_blueprint.piggyback_allowed_aartfaac)
-        self.assertEqual(scheduling_unit_draft.priority_rank, scheduling_unit_blueprint.priority_rank)
+        self.assertEqual(scheduling_unit_draft.rank, scheduling_unit_blueprint.rank)
         self.assertEqual(scheduling_unit_draft.interrupts_telescope, scheduling_unit_blueprint.interrupts_telescope)
 
 
diff --git a/SAS/TMSS/backend/test/t_tmssapp_specification_REST_API.py b/SAS/TMSS/backend/test/t_tmssapp_specification_REST_API.py
index aebb17dfa1434f32fc501d8c30ea4f3bce8c2c12..2e77f49f13af7ed27faabc555b26f288722332f3 100755
--- a/SAS/TMSS/backend/test/t_tmssapp_specification_REST_API.py
+++ b/SAS/TMSS/backend/test/t_tmssapp_specification_REST_API.py
@@ -786,7 +786,7 @@ class ProjectTestCase(unittest.TestCase):
         url = r_dict['url']
         GET_OK_and_assert_equal_expected_response(self, url, expected)
 
-        test_patch = {"priority_rank": 1.0,
+        test_patch = {"rank": 1.0,
                       "tags": ["SUPERIMPORTANT"]}
 
         # PATCH item and verify
@@ -1318,18 +1318,18 @@ class SchedulingUnitDraftTestCase(unittest.TestCase):
         self.assertEqual(response_2['results'][1]['name'], su_draft_3.name)
         self.assertIn('Select a valid choice', str(response_3))
 
-    def test_GET_SchedulingUnitDraft_view_filters_for_priority_rank(self):
+    def test_GET_SchedulingUnitDraft_view_filters_for_rank(self):
         """
         Test we can filter on this property, which is explicitly named on the model-specific property filter
         """
         # setup
-        su_draft_1 = models.SchedulingUnitDraft.objects.create(**SchedulingUnitDraft_test_data(name='sud1_%s' % uuid.uuid4()), priority_rank=0.111)
-        su_draft_2 = models.SchedulingUnitDraft.objects.create(**SchedulingUnitDraft_test_data(name='sud2_%s' % uuid.uuid4()), priority_rank=0.222)
-        su_draft_3 = models.SchedulingUnitDraft.objects.create(**SchedulingUnitDraft_test_data(name='sud3_%s' % uuid.uuid4()), priority_rank=0.333)
+        su_draft_1 = models.SchedulingUnitDraft.objects.create(**SchedulingUnitDraft_test_data(name='sud1_%s' % uuid.uuid4()), rank=0.111)
+        su_draft_2 = models.SchedulingUnitDraft.objects.create(**SchedulingUnitDraft_test_data(name='sud2_%s' % uuid.uuid4()), rank=0.222)
+        su_draft_3 = models.SchedulingUnitDraft.objects.create(**SchedulingUnitDraft_test_data(name='sud3_%s' % uuid.uuid4()), rank=0.333)
 
         # assert
-        response_1 = GET_and_assert_equal_expected_code(self, BASE_URL + '/scheduling_unit_draft/?priority_rank_min=%s&priority_rank_max=%s' % (0.110, 0.112), 200)
-        response_2 = GET_and_assert_equal_expected_code(self, BASE_URL + '/scheduling_unit_draft/?priority_rank_min=%s&priority_rank_max=%s' % (0.2, 0.4), 200)
+        response_1 = GET_and_assert_equal_expected_code(self, BASE_URL + '/scheduling_unit_draft/?rank_min=%s&rank_max=%s' % (0.110, 0.112), 200)
+        response_2 = GET_and_assert_equal_expected_code(self, BASE_URL + '/scheduling_unit_draft/?rank_min=%s&rank_max=%s' % (0.2, 0.4), 200)
 
         self.assertEqual(response_1['count'], 1)
         self.assertEqual(response_1['results'][0]['name'], su_draft_1.name)
diff --git a/SAS/TMSS/backend/test/tmss_test_data_django_models.py b/SAS/TMSS/backend/test/tmss_test_data_django_models.py
index a5ce8233401eceee38183665dda69f9f7033e6bd..e18db900118a4d168af571ecf023f92925a413df 100644
--- a/SAS/TMSS/backend/test/tmss_test_data_django_models.py
+++ b/SAS/TMSS/backend/test/tmss_test_data_django_models.py
@@ -112,7 +112,7 @@ def Cycle_test_data(start=None, stop=None) -> dict:
             "start": start or datetime.utcnow().isoformat(),
             "stop": stop or datetime.utcnow().isoformat()}
 
-def Project_test_data(name: str=None, priority_rank: int = 1, auto_pin=False, can_trigger=False, auto_ingest=False, project_state=None) -> dict:
+def Project_test_data(name: str=None, rank: int = 1, auto_pin=False, can_trigger=False, auto_ingest=False, project_state=None) -> dict:
     if name is None:
         name = 'my_project_' + str(uuid.uuid4())
 
@@ -124,7 +124,7 @@ def Project_test_data(name: str=None, priority_rank: int = 1, auto_pin=False, ca
                "description": 'my description ' + str(uuid.uuid4()),
                "tags": [],
                "auto_ingest": False,
-               "priority_rank": priority_rank,
+               "rank": rank,
                "trigger_priority": 1000,
                "can_trigger": can_trigger,
                "private_data": True,
diff --git a/SAS/TMSS/backend/test/tmss_test_data_rest.py b/SAS/TMSS/backend/test/tmss_test_data_rest.py
index 7592d0fdd05e64a21cda275db9fcc3902c36c5b3..f32b2640bb6a8fd320b3c560a451e18a4461c0b0 100644
--- a/SAS/TMSS/backend/test/tmss_test_data_rest.py
+++ b/SAS/TMSS/backend/test/tmss_test_data_rest.py
@@ -255,7 +255,7 @@ class TMSSRESTTestDataCreator():
                 "description": description,
                 "tags": [],
                 "quota": [],
-                "priority_rank": 1.0,
+                "rank": 1.0,
                 "trigger_priority": 1000,
                 "can_trigger": False,
                 "private_data": True,
diff --git a/SAS/TMSS/client/lib/tmssbuslistener.py b/SAS/TMSS/client/lib/tmssbuslistener.py
index fde71938060082baa3d70862da5c42acaf5a5a21..c6d8772d20b4c52d2da6eddd2885406dc38ce7fc 100644
--- a/SAS/TMSS/client/lib/tmssbuslistener.py
+++ b/SAS/TMSS/client/lib/tmssbuslistener.py
@@ -128,8 +128,8 @@ class TMSSEventMessageHandler(AbstractMessageHandler):
             self.onProjectStatusUpdated(**msg.content)
         elif stripped_subject == 'Project.Object.Deleted':
             self.onProjectDeleted(**msg.content)
-        elif stripped_subject == 'Project.Object.PriorityRank.Updated':
-            self.onProjectPriorityRankUpdated(**msg.content)
+        elif stripped_subject == 'Project.Object.Rank.Updated':
+            self.onProjectRankUpdated(**msg.content)
         elif stripped_subject == 'ProjectQuotaArchiveLocation.Object.Created':
             self.onProjectQuotaArchiveLocationCreated(**msg.content)
         elif stripped_subject == 'ProjectQuotaArchiveLocation.Object.Updated':
@@ -140,8 +140,8 @@ class TMSSEventMessageHandler(AbstractMessageHandler):
             self.onSchedulingUnitBlueprintCannotProceed(**msg.content)
         elif stripped_subject == 'SchedulingUnitBlueprint.Object.Constraints.Updated':
             self.onSchedulingUnitBlueprintConstraintsUpdated(**msg.content)
-        elif stripped_subject == 'SchedulingUnitBlueprint.Object.PriorityRank.Updated':
-            self.onSchedulingUnitBlueprintPriorityRankUpdated(**msg.content)
+        elif stripped_subject == 'SchedulingUnitBlueprint.Object.Rank.Updated':
+            self.onSchedulingUnitBlueprintRankUpdated(**msg.content)
         elif stripped_subject == 'SchedulingUnitBlueprint.Object.PriorityQueue.Updated':
             self.onSchedulingUnitBlueprintPriorityQueueUpdated(**msg.content)
         elif stripped_subject == 'SchedulingUnitBlueprint.Object.IngestPermissionGranted':
@@ -258,8 +258,8 @@ class TMSSEventMessageHandler(AbstractMessageHandler):
         '''
         pass
 
-    def onSchedulingUnitBlueprintPriorityRankUpdated(self, id: int, priority_rank: float):
-        '''onSchedulingUnitBlueprintPriorityRankUpdated is called upon receiving a SchedulingUnitBlueprint.Object.PriorityRank.Updated message, which is sent when a the priority_rank on a SchedulingUnitDrafts was updated.
+    def onSchedulingUnitBlueprintRankUpdated(self, id: int, rank: float):
+        '''onSchedulingUnitBlueprintRankUpdated is called upon receiving a SchedulingUnitBlueprint.Object.Rank.Updated message, which is sent when a the rank on a SchedulingUnitDrafts was updated.
         :param id: the TMSS id of the SchedulingUnitBlueprint
         '''
         pass
@@ -309,8 +309,8 @@ class TMSSEventMessageHandler(AbstractMessageHandler):
         '''
         pass
 
-    def onProjectPriorityRankUpdated(self, name: str, priority_rank: float):
-        '''onProjectPriorityRankUpdated is called upon receiving a Project.PriorityRank.Updated message, which is sent when a Project was assigned a new priority_rank.
+    def onProjectRankUpdated(self, name: str, rank: float):
+        '''onProjectRankUpdated is called upon receiving a Project.Rank.Updated message, which is sent when a Project was assigned a new rank.
         '''
         pass
 
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/__mocks__/project.service.data.js b/SAS/TMSS/frontend/tmss_webapp/src/__mocks__/project.service.data.js
index 114b35b7085b8cb2a3ab809696635554697f319d..a2ea770433ced053c33ecb664e6ba0482e34d746 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/__mocks__/project.service.data.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/__mocks__/project.service.data.js
@@ -119,7 +119,7 @@ const ProjectServiceMock= {
         "filler": false,
         "period_category": "Single Cycle",
         "period_category_value": "Single Cycle",
-        "priority_rank": 5,
+        "rank": 5,
         "private_data": true,
         "project_category": "Regular",
         "project_category_value": "Regular",
@@ -238,7 +238,7 @@ const ProjectServiceMock= {
         "filler": false,
         "period_category": "http://192.168.99.100:8008/api/period_category/single_cycle",
         "period_category_value": "single_cycle",
-        "priority_rank": 1,
+        "rank": 1,
         "private_data": true,
         "project_category": "http://192.168.99.100:8008/api/project_category/regular",
         "project_category_value": "regular",
@@ -276,7 +276,7 @@ const ProjectServiceMock= {
         "filler": false,
         "period_category": null,
         "period_category_value": null,
-        "priority_rank": 1,
+        "rank": 1,
         "private_data": true,
         "project_category": null,
         "project_category_value": null,
@@ -318,7 +318,7 @@ const ProjectServiceMock= {
         "filler": false,
         "period_category": null,
         "period_category_value": null,
-        "priority_rank": 1,
+        "rank": 1,
         "private_data": true,
         "project_category": null,
         "project_category_value": null,
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js b/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
index 4321d01a2990058e6316fa6c7491fd41328e1bcd..27aedebc906232c05497768503124081b0b8541a 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/components/ViewTable.js
@@ -1417,7 +1417,7 @@ function NumberRangeFilter({
   )
 }
 
-// Priority Rank Range Filter
+// Rank Range Filter
 function RankRangeFilter({
   column: { filterValue = [], preFilteredRows, setFilter, id, Header },
 }) {
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/create.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/create.js
index 04ef8a71c1ce8c653120f7279022be4ac2bc5a3c..9492e7047e00c6d546575fca7773e83593c2846b 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/create.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/create.js
@@ -39,7 +39,7 @@ export class ProjectCreate extends Component {
                 name: '',
                 description: '',
                 trigger_priority: 1000,
-                priority_rank: '',
+                rank: '',
                 quota: [],                          // Mandatory Field in the back end, so an empty array is passed
                 can_trigger: false,
                 auto_pin: false,
@@ -63,7 +63,7 @@ export class ProjectCreate extends Component {
         this.formRules = {
             name: {required: true, message: "Name can not be empty"},
             description: {required: true, message: "Description can not be empty"},
-            priority_rank: {required: true, message: "Enter Project Rank. Min-0.00, Max-6.00"},
+            rank: {required: true, message: "Enter Project Rank. Min-0.00, Max-6.00"},
         };
         this.defaultResourcesEnabled = true;        // This property and functionality to be concluded based on PO input
         this.defaultResources = [{name:'LOFAR Observing Time'}, 
@@ -209,7 +209,7 @@ export class ProjectCreate extends Component {
                 break;
             }
             case 'DECIMAL': {
-                const previousValue = this.state.project.priority_rank;
+                const previousValue = this.state.project.rank;
                 value = value.replace(/([^0-9.]+)/, "");
                 const match = /(\d{0,1})[^.]*((?:\.\d{0,2})?)/g.exec(value);
                 const val = match[1] + match[2];
@@ -297,9 +297,9 @@ export class ProjectCreate extends Component {
                 const rule = this.formRules[fieldName];
                 const fieldValue = this.state.project[fieldName];
                 if (rule.required) {
-                    if (!fieldValue && fieldName !== 'priority_rank') {
+                    if (!fieldValue && fieldName !== 'rank') {
                         errors[fieldName] = rule.message?rule.message:`${fieldName} is required`;
-                    }   else if (fieldName === 'priority_rank' && fieldValue === '') {
+                    }   else if (fieldName === 'rank' && fieldValue === '') {
                         errors[fieldName] = rule.message?rule.message:`${fieldName} is required`;
                     }   else {
                         validFields[fieldName] = true;
@@ -344,7 +344,7 @@ export class ProjectCreate extends Component {
                 }
             }
             let project = { ...this.state.project };
-            project['priority_rank'] = project.priority_rank.toFixed(2);
+            project['rank'] = project.rank.toFixed(2);
             ProjectService.saveProject(project, this.defaultResourcesEnabled?projectQuota:[])
                 .then(project => {
                     if (project.url) {
@@ -417,7 +417,7 @@ export class ProjectCreate extends Component {
                     name: '',
                     description: '',
                     trigger_priority: 1000,
-                    priority_rank: 0,
+                    rank: 0,
                     quota: [],
                     archive_location: null,
                     archive_subdirectory:"",
@@ -544,11 +544,11 @@ export class ProjectCreate extends Component {
                                     data-tip="Priority of this project w.r.t. other projects. Projects can interrupt observations of lower-priority projects. Min-0.00, Max-6.00"
                                     inputId="proj-rank" name="rank" data-testid="rank"
                                     className="p-inputtext p-component"
-                                    value={this.state.project.priority_rank}
+                                    value={this.state.project.rank}
                                     step="0.01"
-                                    onChange={(e)=> this.setProjectParams('priority_rank', e.target.value, "DECIMAL")}/>	
+                                    onChange={(e)=> this.setProjectParams('rank', e.target.value, "DECIMAL")}/>
                                 <label className="error">
-                                    {this.state.errors.priority_rank ? this.state.errors.priority_rank : ""}
+                                    {this.state.errors.rank ? this.state.errors.rank : ""}
                                 </label>
                             </div>
                         </div>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/edit.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/edit.js
index b60370894c80de96b3f2fd89043c39fe29373537..d74e5b501de3c45e676b697c2eb5e45231c04be2 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/edit.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/edit.js
@@ -37,7 +37,7 @@ export class ProjectEdit extends Component {
             dialog: { header: '', detail: ''},
             project: {
                 trigger_priority: 1000,
-                priority_rank: 0,
+                rank: 0,
                 quota: []                   // Mandatory Field in the back end
             },
             projectQuota: {},                       // Holds the value of resources selected with resource_type_id as key
@@ -57,7 +57,7 @@ export class ProjectEdit extends Component {
         this.formRules = {
             name: {required: true, message: "Name can not be empty"},
             description: {required: true, message: "Description can not be empty"},
-            priority_rank: {required: true, message: "Enter Project Rank. Min-0.00, Max-6.00"}
+            rank: {required: true, message: "Enter Project Rank. Min-0.00, Max-6.00"}
         };
         this.defaultResources = [{name:'LOFAR Observing Time'}, 
                                     {name:'LOFAR Observing Time prio A'}, 
@@ -245,7 +245,7 @@ export class ProjectEdit extends Component {
                 break;
             }
             case 'DECIMAL': {
-                const previousValue = this.state.project.priority_rank;
+                const previousValue = this.state.project.rank;
                 value = value.replace(/([^0-9.]+)/, "");
                 //value = value.replace(/^(0|\.)/, "");
                 const match = /(\d{0,1})[^.]*((?:\.\d{0,2})?)/g.exec(value);
@@ -336,9 +336,9 @@ export class ProjectEdit extends Component {
                 const rule = this.formRules[fieldName];
                 const fieldValue = this.state.project[fieldName];
                 if (rule.required) {
-                    if (!fieldValue && fieldName !== 'priority_rank') {
+                    if (!fieldValue && fieldName !== 'rank') {
                         errors[fieldName] = rule.message?rule.message:`${fieldName} is required`;
-                    }   else if (fieldName === 'priority_rank' && fieldValue === '') {
+                    }   else if (fieldName === 'rank' && fieldValue === '') {
                         errors[fieldName] = rule.message?rule.message:`${fieldName} is required`;
                     }   else {
                         validFields[fieldName] = true;
@@ -352,9 +352,9 @@ export class ProjectEdit extends Component {
                 const rule = this.formRules[fieldName];
                 const fieldValue = this.state.project[fieldName];
                 if (rule.required) {
-                    if (!fieldValue && fieldName !== 'priority_rank') {
+                    if (!fieldValue && fieldName !== 'rank') {
                         errors[fieldName] = rule.message?rule.message:`${fieldName} is required`;
-                    }   else if (fieldName === 'priority_rank' && fieldValue === '') {
+                    }   else if (fieldName === 'rank' && fieldValue === '') {
                         errors[fieldName] = rule.message?rule.message:`${fieldName} is required`;
                     }   else {
                         validFields[fieldName] = true;
@@ -376,7 +376,7 @@ export class ProjectEdit extends Component {
     saveProject() {
         if (this.validateForm) {
             const project = { ...this.state.project };
-            project['priority_rank'] = project.priority_rank.toFixed(2);
+            project['rank'] = project.rank.toFixed(2);
             let archive_location = project.archive_location;
             let archiveId = project.archiveId;
             ProjectService.updateProject(this.props.match.params.id, project)
@@ -594,11 +594,11 @@ export class ProjectEdit extends Component {
                                             data-tip="Priority of this project w.r.t. other projects. Projects can interrupt observations of lower-priority projects. Min-0.00, Max-6.00"
                                             inputId="proj-rank" name="rank" data-testid="rank"
                                             className="p-inputtext p-component"
-                                            value={this.state.project.priority_rank}
+                                            value={this.state.project.rank}
                                             step="0.01"
-                                            onChange={(e)=> this.setProjectParams('priority_rank', e.target.value, "DECIMAL")}/>
+                                            onChange={(e)=> this.setProjectParams('rank', e.target.value, "DECIMAL")}/>
                                         <label className="error">
-                                            {this.state.errors.priority_rank ? this.state.errors.priority_rank : ""}
+                                            {this.state.errors.rank ? this.state.errors.rank : ""}
                                         </label>
                                     </div>
                                 </div>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/list.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/list.js
index 6cbec17b1e1fcf250a067660062997e554f8e018..b620d1e6bdf388be479ba85254190cebfe664582 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/list.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/list.js
@@ -87,7 +87,7 @@ export class ProjectList extends Component {
                     name: "Ingest Automatically",
                     filter: "switch",
                 },
-                priority_rank: {
+                rank: {
                     name: "Project Priority",
                     filter: "range"
                 },
@@ -501,7 +501,7 @@ export class ProjectList extends Component {
                     filler: true,
                     name: "Lofar-TMSS-Commissioning",
                     observing_time: "155852.10",
-                    priority_rank: 10,
+                    rank: 10,
                     private_data: true,
                     project_quota: ["http://localhost:3000/api/project_quota/6/", "http://localhost:3000/api/project_quota/7/"],
                     project_quota_ids: [6, 7],
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/view.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/view.js
index b6dd3ab0720ddc4b09a5eeae92f877a5b89f4405..5bbc6243b61611fa15e7c5d8fdf4315461e28f75 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/view.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Project/view.js
@@ -314,7 +314,7 @@ export class ProjectView extends Component {
                                         <label className="col-lg-2 col-md-2 col-sm-12">Cycles</label>
                                         <Chips className="col-lg-4 col-md-4 col-sm-12 chips-readonly" disabled value={this.state.project.cycles_ids}></Chips>
                                         <label className="col-lg-2 col-md-2 col-sm-12">Project Rank</label>
-                                        <span className="col-lg-4 col-md-4 col-sm-12">{this.state.project.priority_rank}</span>
+                                        <span className="col-lg-4 col-md-4 col-sm-12">{this.state.project.rank}</span>
                                     </div>
                                     <div className="p-grid">
                                         <label className="col-lg-2 col-md-2 col-sm-12">Project Status</label>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js
index b7ed51a1a2a3303dd6c402d83198aa436ce3d691..29df0325ab9d1b1e5d9bc63cc6c3af4784e06c76 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/SchedulingUnitList.js
@@ -30,7 +30,7 @@ class SchedulingUnitList extends Component{
     //Expand details for API Query
     SU_DRAFT_EXPAND = 'scheduling_set,scheduling_set.project,observation_strategy_template,task_drafts,task_drafts.specifications_template';
     SU_DRAFT_FIELDS = ['id', 'scheduling_unit_blueprints', 'scheduling_unit_blueprints_ids', 'scheduling_set.name',
-    'scheduling_set.project.name', 'name', 'description', 'priority', 'priority_queue_value', 'priority_rank',
+    'scheduling_set.project.name', 'name', 'description', 'priority', 'priority_queue_value', 'rank',
     'observation_strategy_template.id', 'observation_strategy_template.name', 'observation_strategy_template.description',
     'duration', 'do_cancel', 'output_pinned', 'created_at', 'updated_at', 'task_drafts.id', 'task_drafts.name',
     'task_drafts.specifications_doc', 'task_drafts.specifications_template.id', 'task_drafts.specifications_template.name',
@@ -38,7 +38,7 @@ class SchedulingUnitList extends Component{
     ];
     SU_BLUEPRINT_EXPAND = 'draft,draft.scheduling_set,draft.scheduling_set.project,draft.observation_strategy_template,task_blueprints,task_blueprints.specifications_template,task_blueprints.subtasks';
     SU_BLUEPRINT_FIELDS = ['id', 'status', 'draft_id', 'draft.id', 'draft.scheduling_set.name', 'draft.scheduling_set.project.name',
-    'name', 'description', 'priority', 'priority_queue_value', 'priority_rank', 'draft.observation_strategy_template.id',
+    'name', 'description', 'priority', 'priority_queue_value', 'rank', 'draft.observation_strategy_template.id',
     'draft.observation_strategy_template.name', 'draft.observation_strategy_template.description', 'on_sky_start_time',
     'on_sky_stop_time', 'process_start_time', 'process_stop_time', 'duration', 'do_cancel', 'output_pinned', 'created_at',
     'updated_at', 'task_blueprints.id', 'task_blueprints.name', 'task_blueprints.specifications_doc', 'task_blueprints.specifications_template.id',
@@ -131,7 +131,7 @@ class SchedulingUnitList extends Component{
                 "Description",
                 "Priority",
                 "Priority Queue",
-                "Priority Rank",
+                "Rank",
                 "Scheduling Set",
                 "Template ID",
                 "Template Name",
@@ -174,7 +174,7 @@ class SchedulingUnitList extends Component{
                 actionpath:"actionpath",
                 draft:{name: "Linked Blueprint Id", tooltip: this.COMMA_SEPARATE_TOOLTIP},
                 //priority_queue: {name: "Priority Queue", filter: "select"},
-                priority_rank: {name: "Priority Rank",filter: "rankMinMax"},
+                rank: {name: "Rank",filter: "rankMinMax"},
                 observation_strategy_template_id:{name: "Template ID", tooltip: 'Enter Id and press ‘Enter’ key to search'},
                 created_at:{
                     name:"Created_At",
@@ -194,7 +194,7 @@ class SchedulingUnitList extends Component{
                 "Template Description": "filter-input-200",
                 "Scheduling Set": "filter-input-150",
                 "Project":"filter-input-100",
-                "Priority Rank":"filter-input-75",
+                "Rank":"filter-input-75",
                 "Duration (HH:mm:ss)":"filter-input-100",
                 "Linked Draft ID":"filter-input-100",
                 "Linked Blueprint ID":"filter-input-100",
@@ -567,7 +567,7 @@ class SchedulingUnitList extends Component{
         const columnDefinitionToBeRemove = ['status', 'workflowStatus', 'dataAccepted', 'on_sky_start_time', 'on_sky_stop_time', 'process_start_time', 'process_stop_time'];
         //For Constraint
         const constColDefToBeRemove = ['observation_strategy_template_name', 'duration', 'observation_strategy_template_id', 'observation_strategy_template_description', 'on_sky_start_time', 'on_sky_stop_time', 'process_start_time', 'process_stop_time', 'task_content',
-        'target_observation_sap', 'do_cancel', 'created_at', 'updated_at', 'priority_rank', 'priority_queue', 'output_pinned', 'draft', 'targetName','targetAngle1','targetAngle2','targetRef'];
+        'target_observation_sap', 'do_cancel', 'created_at', 'updated_at', 'rank', 'priority_queue', 'output_pinned', 'draft', 'targetName','targetAngle1','targetAngle2','targetRef'];
         const suFilters = await ScheduleService.getSchedulingUnitFilterDefinition(type);
         this.columnMap = [];
         let tmpDefaulColumns = _.cloneDeep(this.state.defaultcolumns[0]);
@@ -1423,13 +1423,13 @@ class SchedulingUnitList extends Component{
                     for ( const value of values) {
                         this.filterQry += 'scheduling_unit_blueprints='+value+"&";
                     }
-                }   else if (filter.id === 'Priority Rank' && filter.value != '') {
+                }   else if (filter.id === 'Rank' && filter.value != '') {
                     const values = _.split(filter.value, ",");
                     if (values[0] && values[0] !== '' && values[0]>0) {
-                        this.filterQry += "priority_rank_min" +'='+parseFloat(values[0])+'&';
+                        this.filterQry += "rank_min" +'='+parseFloat(values[0])+'&';
                     }
                     if (values[1] && values[1] !== '' && values[1]>0) {
-                        this.filterQry += "priority_rank_max" +'='+parseFloat(values[1])+'&';
+                        this.filterQry += "rank_max" +'='+parseFloat(values[1])+'&';
                     }
                 }   else if ((filter.id === 'Created_At' || filter.id === 'Updated_At') && filter.value != '') {
                     let columnDetails = _.find(this.state.columnMap, {displayName:filter.id});
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js
index de82d28f9cad8a527b92ca15096424e10cd02853..04e27998e0b397bb56db02089c7013709ace6aec 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/ViewSchedulingUnit.js
@@ -44,7 +44,7 @@ class ViewSchedulingUnit extends Component {
     SU_BLUEPRINT_EXPAND= 'draft.scheduling_constraints_template,draft,draft.scheduling_set,task_blueprints.specifications_template,task_blueprints,task_blueprints.subtasks,draft.observation_strategy_template'
     SU_BLUEPRINT_FIELDS= ['id','url','created_at','status','tags','output_pinned','duration','name','on_sky_start_time','on_sky_stop_time','scheduling_constraints_doc','description',
                             'updated_at','draft.url','draft.id','draft.name','draft.scheduling_set.url','draft.scheduling_set.name','draft.scheduling_set.project_id','task_blueprints.status',
-                            'draft.priority_rank','draft.priority_queue_value','task_blueprints.subtasks.id','task_blueprints.subtasks.primary','task_blueprints.subtasks.specifications_template_id',
+                            'draft.rank','draft.priority_queue_value','task_blueprints.subtasks.id','task_blueprints.subtasks.primary','task_blueprints.subtasks.specifications_template_id',
                             'task_blueprints.task_type','task_blueprints.id','task_blueprints.subtasks_ids','task_blueprints.name','task_blueprints.description',
                             'task_blueprints.short_description','task_blueprints.on_sky_start_time','task_blueprints.on_sky_stop_time','task_blueprints.process_start_time',
                             'task_blueprints.process_stop_time','task_blueprints.duration','task_blueprints.relative_start_time','task_blueprints.relative_stop_time','task_blueprints.tags', 'task_blueprints.url',
@@ -53,7 +53,7 @@ class ViewSchedulingUnit extends Component {
                             'draft.observation_strategy_template_id','draft.observation_strategy_template.id','draft.observation_strategy_template.name',
                             'draft.observation_strategy_template.description', 'draft.observation_strategy_template.template']
     SU_DRAFT_EXPAND= 'scheduling_constraints_template,scheduling_set,task_drafts.specifications_template,task_drafts,observation_strategy_template,scheduling_unit_blueprints'
-    SU_DRAFT_FIELDS=['id','url','created_at','status','tags','output_pinned','duration','name','on_sky_start_time','on_sky_stop_time','priority_rank','priority_queue_value','description',
+    SU_DRAFT_FIELDS=['id','url','created_at','status','tags','output_pinned','duration','name','on_sky_start_time','on_sky_stop_time','rank','priority_queue_value','description',
                         'scheduling_constraints_doc','scheduling_constraints_template.schema','scheduling_constraints_template.url','observation_strategy_template_id','task_drafts.url','scheduling_constraints_template_id',
                         'updated_at','scheduling_set.url','scheduling_set.name','scheduling_set.project_id','task_drafts.status','task_drafts.task_type','task_drafts.id','task_drafts.subtasks_ids',
                         'task_drafts.name','task_drafts.description','task_drafts.short_description','task_drafts.on_sky_start_time','task_drafts.on_sky_stop_time','task_drafts.process_start_time',
@@ -1886,8 +1886,8 @@ class ViewSchedulingUnit extends Component {
                                 <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.scheduling_set && this.state.scheduleunit.scheduling_set.name}</span>
                             </div>
                             <div className="p-grid">
-                                <label className="col-lg-2 col-md-2 col-sm-12" >Priority Rank</label>
-                                <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.draft?this.state.scheduleunit.draft.priority_rank: this.state.scheduleunit.priority_rank}</span>
+                                <label className="col-lg-2 col-md-2 col-sm-12" >Rank</label>
+                                <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.draft?this.state.scheduleunit.draft.rank: this.state.scheduleunit.rank}</span>
                                 <label className="col-lg-2 col-md-2 col-sm-12">Priority Queue</label>
                                 <span className="col-lg-4 col-md-4 col-sm-12">{this.state.scheduleunit.draft? this.state.scheduleunit.draft.priority_queue_value : this.state.scheduleunit.priority_queue_value}</span>
                             </div>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/create.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/create.js
index 35bea870f27296bd2ecdfcbd0765b34249ba456e..d04a0fba08f2f0dd2c5cfa2456221af43a33ccb6 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/create.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/create.js
@@ -56,7 +56,7 @@ export class SchedulingUnitCreate extends Component {
                 name: '',
                 description: '',
                 project: (props.match?props.match.params.project:null) || null,
-                priority_rank: '',
+                rank: '',
             },
             projectDisabled: (props.match?(props.match.params.project? true:false):false),      // Disable project selection if 
             observStrategy: {},                     // Selected strategy to create SU
@@ -292,8 +292,8 @@ export class SchedulingUnitCreate extends Component {
             }
         });
         let schedulingUnit = _.cloneDeep(this.state.schedulingUnit);
-        if (key === 'priority_rank') {
-            const previousValue = schedulingUnit.priority_rank;
+        if (key === 'rank') {
+            const previousValue = schedulingUnit.rank;
             value = value.replace(/([^0-9.]+)/, "");
             const match = /(\d{0,1})[^.]*((?:\.\d{0,4})?)/g.exec(value);
             const val = match[1] + match[2];
@@ -461,7 +461,7 @@ export class SchedulingUnitCreate extends Component {
         }
         const const_strategy = {scheduling_constraints_doc: constStrategy, id: this.constraintTemplates[0].id, constraint: this.constraintTemplates[0]};
         let schedulingUnit = this.state.schedulingUnit;
-        schedulingUnit.priority_rank = schedulingUnit.priority_rank === undefined || schedulingUnit.priority_rank === '' ? 0: schedulingUnit.priority_rank.toFixed(4);
+        schedulingUnit.rank = schedulingUnit.rank === undefined || schedulingUnit.rank === '' ? 0: schedulingUnit.rank.toFixed(4);
         schedulingUnit = await ScheduleService.saveSUDraftFromObservStrategy(observStrategy, schedulingUnit, const_strategy, station_groups);
         if (!schedulingUnit.error) {
             // this.growl.show({severity: 'success', summary: 'Success', detail: 'Scheduling Unit and tasks created successfully!'});
@@ -522,7 +522,7 @@ export class SchedulingUnitCreate extends Component {
                 description: '',
                 project: this.props.match.params.project || null,
                 scheduling_constraints_template_id: this.constraintTemplates[0].id,
-                priority_rank: '',
+                rank: '',
              },
             projectDisabled: (this.props.match.params.project? true:false),
             observStrategy: {},
@@ -699,17 +699,17 @@ export class SchedulingUnitCreate extends Component {
                             </div>
                         </div>
                         <div className="p-field p-grid">
-                            <label htmlFor="priorityRank" className="col-lg-2 col-md-2 col-sm-12">Priority Rank</label>
-                            <div className="col-lg-3 col-md-3 col-sm-12" data-testid="priority_rank" >
+                            <label htmlFor="rank" className="col-lg-2 col-md-2 col-sm-12">Rank</label>
+                            <div className="col-lg-3 col-md-3 col-sm-12" data-testid="rank" >
                                 <input type="number"
                                     data-for="reacttooltip"
                                     data-iscapture="true"
                                     data-tip="Priority of this scheduling unit w.r.t. other scheduling units within the same queue and project.. Min-0.0000, Max-1.0000"
                                     inputId="proj-rank" name="rank" data-testid="rank"
                                     className="p-inputtext p-component p-filled"
-                                    value={this.state.schedulingUnit.priority_rank}
+                                    value={this.state.schedulingUnit.rank}
                                     step="0.0001"
-                                    onChange={(e)=> this.setSchedUnitParams('priority_rank', e.target.value)}/>
+                                    onChange={(e)=> this.setSchedUnitParams('rank', e.target.value)}/>
                             </div>
                             <div className="col-lg-1 col-md-1 col-sm-12"></div>
                             <label htmlFor="priority_queue" className="col-lg-2 col-md-2 col-sm-12">Priority Queue</label>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/edit.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/edit.js
index 83ea33f59a24bd1b2cf67ad05842f435ad6c2911..29012f1625ddefbccae134ace6fa73d6cb7939d0 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/edit.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/edit.js
@@ -298,8 +298,8 @@ export class EditSchedulingUnit extends Component {
      */
     setSchedUnitParams(key, value) {
         let schedulingUnit = _.cloneDeep(this.state.schedulingUnit);
-        if (key === 'priority_rank') {
-            const previousValue = schedulingUnit.priority_rank;
+        if (key === 'rank') {
+            const previousValue = schedulingUnit.rank;
             value = value.replace(/([^0-9.]+)/, "");
             const match = /(\d{0,1})[^.]*((?:\.\d{0,4})?)/g.exec(value);
             const val = match[1] + match[2];
@@ -456,7 +456,7 @@ export class EditSchedulingUnit extends Component {
             });
         });
         let schedulingUnit = this.state.schedulingUnit;
-        schUnit.priority_rank = schUnit.priority_rank === ''?0:schUnit.priority_rank.toFixed(4);
+        schUnit.rank = schUnit.rank === ''?0:schUnit.rank.toFixed(4);
         schedulingUnit = await ScheduleService.updateSUDraftFromObservStrategy(observStrategy,schUnit,this.state.taskDrafts, this.state.tasksToUpdate, station_groups);
         if (!schedulingUnit.error) {
                 this.growl.show({severity: 'success', summary: 'Success', detail: 'Scheduling Unit and Tasks updated successfully!'});
@@ -615,19 +615,19 @@ export class EditSchedulingUnit extends Component {
                                 </div>
                             </div>
                             <div className="p-field p-grid">
-                                <label htmlFor="priorityRank" className="col-lg-2 col-md-2 col-sm-12">Priority Rank</label>
-                                <div className="col-lg-3 col-md-3 col-sm-12" data-testid="priority_rank" >
+                                <label htmlFor="rank" className="col-lg-2 col-md-2 col-sm-12">Rank</label>
+                                <div className="col-lg-3 col-md-3 col-sm-12" data-testid="rank" >
                                     <input type="number"
                                             data-for="reacttooltip"
                                             data-iscapture="true"
                                             data-tip="Priority of this scheduling unit w.r.t. other scheduling units within the same queue and project.. Min-0.0000, Max-1.0000"
                                             inputId="proj-rank" name="rank" data-testid="rank"
                                             className="p-inputtext p-component p-filled"
-                                            value={this.state.schedulingUnit.priority_rank}
+                                            value={this.state.schedulingUnit.rank}
                                             step="0.0001"
-                                            onChange={(e)=> this.setSchedUnitParams('priority_rank', e.target.value)}/>
+                                            onChange={(e)=> this.setSchedUnitParams('rank', e.target.value)}/>
                                     <label className="error">
-                                        {this.state.errors.priority_rank ? this.state.errors.priority_rank : ""}
+                                        {this.state.errors.rank ? this.state.errors.rank : ""}
                                     </label>
                                 </div>
                                 <div className="col-lg-1 col-md-1 col-sm-12"></div>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/excelview.schedulingset.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/excelview.schedulingset.js
index b8d7bdc21b6eb0ad55683bb6a9a26cbd6b61ba43..0b10676c9f62b4989c6b384b329b7ba047ca806f 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/excelview.schedulingset.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Scheduling/excelview.schedulingset.js
@@ -734,7 +734,7 @@ export class SchedulingSetCreate extends Component {
                     id: scheduleunit.id,
                     suname: scheduleunit.name,
                     sudesc: scheduleunit.description,
-                    priority_rank: scheduleunit.priority_rank,
+                    rank: scheduleunit.rank,
                     priority_queue: scheduleunit.priority_queue_value,
                     //set default TRUE and it will reset this value while validating the row and will skip the invalid rows when save the row data 
                     isValid: true,
@@ -1134,8 +1134,8 @@ export class SchedulingSetCreate extends Component {
                                 }  else  { 
                                     return { backgroundColor: ''};}
                             },},
-                        {headerName: 'Priority Rank', field: 'priority_rank',cellEditor: 'numericEditor', cellStyle: function(params) {
-                            let value = params.data.priority_rank? params.data.priority_rank: params.data.gdef_priority_rank ? params.data.gdef_priority_rank : '';
+                        {headerName: 'Rank', field: 'rank',cellEditor: 'numericEditor', cellStyle: function(params) {
+                            let value = params.data.rank? params.data.rank: params.data.gdef_rank ? params.data.gdef_rank : '';
                             if (value && value !== '') {
                                 const splitValue = _.split((value+''),".");
                                 if (value < 0 || value > 1 || (splitValue.length > 1 && splitValue[1].length > 4)) {
@@ -1149,11 +1149,11 @@ export class SchedulingSetCreate extends Component {
                         cellEditorParams: {values: this.state.priorityQueuelist}},]
                     }
                 ];
-        colProperty = {'ID':'id', 'Name':'suname', 'Description':'sudesc', 'Priority Rank':'priority_rank', 'Priority Queue':'priority_queue'};
+        colProperty = {'ID':'id', 'Name':'suname', 'Description':'sudesc', 'Rank':'rank', 'Priority Queue':'priority_queue'};
         columnMap['Scheduling Unit'] = colProperty;
         this.colKeyOrder.push("suname");
         this.colKeyOrder.push("sudesc");
-        this.colKeyOrder.push("priority_rank");
+        this.colKeyOrder.push("rank");
         this.colKeyOrder.push("priority_queue");
         // Create Constraint Column for AG Grid
         columnDefs = await this.getConstraintColumns(columnDefs);
@@ -1631,7 +1631,7 @@ export class SchedulingSetCreate extends Component {
                                 isValidRow = false;
                                 errorMsg += column.colDef.headerName+", ";
                             }  else {
-                                if  (column.colId === 'priority_rank'){
+                                if  (column.colId === 'rank'){
                                     let value  = rowData[column.colId]?rowData[column.colId]:'0';
                                     rowData[column.colId] = value;
                                     const splitValue = _.split((value+'') , ".");
@@ -2020,7 +2020,7 @@ export class SchedulingSetCreate extends Component {
                     newSU['name'] = suRow.suname;
                     newSU['description'] = suRow.sudesc;
                     newSU['output_pinned'] = this.state.selectedProject[0].auto_pin;
-                    newSU['priority_rank'] = suRow.priority_rank && suRow.priority_rank.length>0? _.round(parseFloat(suRow.priority_rank), 4):suRow.priority_rank;
+                    newSU['rank'] = suRow.rank && suRow.rank.length>0? _.round(parseFloat(suRow.rank), 4):suRow.rank;
                     if (suRow.priority_queue ) {
                         newSU['priority_queue'] = suRow.priority_queue;
                     }
@@ -2046,7 +2046,7 @@ export class SchedulingSetCreate extends Component {
                     let newSchedulueUnit = {
                         description: suRow.sudesc,
                         name: suRow.suname,
-                        priority_rank: suRow.priority_rank && suRow.priority_rank.length > 0 ? _.round(parseFloat(suRow.priority_rank), 4) : suRow.priority_rank,
+                        rank: suRow.rank && suRow.rank.length > 0 ? _.round(parseFloat(suRow.rank), 4) : suRow.rank,
                         priority_queue: suRow.priority_queue,
                         scheduling_constraints_template_id: newSU['scheduling_constraints_template_id'],
                         scheduling_set_id: newSU['scheduling_set_id'],
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js b/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js
index b6684a162480a97b754ef2aa9cc10c6fe18abcd8..43a39a182eecf16047bb42aa1a42332e52b90f36 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js
@@ -24,7 +24,7 @@ const SU_FETCH_FIELDS = [ "id",
                             "on_sky_start_time", "on_sky_stop_time",
                             "scheduled_start_time", "scheduled_stop_time",
                             "duration",
-                            "priority_rank",
+                            "rank",
                             "updated_at",
                             "draft.id",
                             "draft.name",
@@ -718,8 +718,8 @@ const ScheduleService = {
             // Create the scheduling unit draft with observation strategy and scheduling set
             const url = `/api/scheduling_unit_observing_strategy_template/${observStrategy.id}/create_scheduling_unit/?scheduling_set_id=${schedulingUnit.scheduling_set_id}&name=${schedulingUnit.name}&description=${schedulingUnit.description}`
             const suObsResponse = await axios.post(url);
-            if (schedulingUnit.priority_rank !== '') {
-                suObsResponse.data.priority_rank = schedulingUnit.priority_rank;
+            if (schedulingUnit.rank !== '') {
+                suObsResponse.data.rank = schedulingUnit.rank;
             }
             if (schedulingUnit.priority_queue !== '') {
                 suObsResponse.data.priority_queue = schedulingUnit.priority_queue;
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js b/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js
index eb1e639f5dde8fef297330ff3cbd41667e0a7d2c..d56c3e3453ebb5bb1a8bbf9f953124246ef17532 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/shared/timeline.constants.js
@@ -35,7 +35,7 @@ const TimelineConstants = {
         dataAccepted: {
             name: "Data Accepted"
         },
-        priority_rank: {
+        rank: {
             name: "Priority"
         },
         project: {
@@ -80,7 +80,7 @@ const TimelineConstants = {
         workflowStatus: {
             name: "Workflow Status"
         },
-        priority_rank: {
+        rank: {
             name: "Priority"
         },
         project: {