diff --git a/SAS/LSMR/src/lsmr/lsmrapp/models/specification.py b/SAS/LSMR/src/lsmr/lsmrapp/models/specification.py
index 13d95ceb4a94fa58f649e6443cddb22e28eac303..d78f3ca483e89ef7644609e472c38f088755c663 100644
--- a/SAS/LSMR/src/lsmr/lsmrapp/models/specification.py
+++ b/SAS/LSMR/src/lsmr/lsmrapp/models/specification.py
@@ -192,18 +192,23 @@ class RunBlueprint(UserDefinedCommon):
 class Run(SystemDefinedCommon):
     requirements_doc = JSONField()
     do_cancel = BooleanField()
-    template = ForeignKey(RunTemplate, on_delete=SET_NULL, null=True)
-    blueprint = ForeignKey(RunBlueprint, related_name='related_runs', on_delete=CASCADE)
+    template = ForeignKey('RunTemplate', on_delete=SET_NULL, null=True)
+    blueprint = ForeignKey('RunBlueprint', related_name='related_runs', on_delete=CASCADE)
 
 
 class WorkRequestBlueprint(UserDefinedCommon):
-    # todo
-    pass
+    requirements_doc = JSONField()
+    copies = ForeignKey('WorkRequestBlueprint', related_name="copied_from", on_delete=SET_NULL, null=True)
+    copy_reason = CharField(max_length=30,
+                            choices=
+                            [(item.name, item.value) for item in CopyReasonChoice])
 
 
 class WorkRequest(SystemDefinedCommon):
-    # todo
-    pass
+    requirements_doc = JSONField()
+    do_cancel = BooleanField()
+    template = ForeignKey('WorkRequestTemplate', on_delete=SET_NULL, null=True)
+    blueprint = ForeignKey('WorkRequestBlueprint', related_name='related_work_requests', on_delete=CASCADE)
 
 
 class WorkRequestRelationBlueprint(UserDefinedCommon):
@@ -213,6 +218,7 @@ class WorkRequestRelationBlueprint(UserDefinedCommon):
     producer = ForeignKey(WorkRequestBlueprint, related_name='work_request_relation_blueprint_producer', on_delete=CASCADE)
     consumer = ForeignKey(WorkRequestBlueprint, related_name='work_request_relation_blueprint_consumer', on_delete=CASCADE)
 
+
 class WorkRequestRelation(SystemDefinedCommon):
     selection_doc = JSONField()
     dataformat = CharField(max_length=30,
diff --git a/SAS/LSMR/src/lsmr/lsmrapp/serializers/specification.py b/SAS/LSMR/src/lsmr/lsmrapp/serializers/specification.py
index 2bd2ef47ad2e15d0405b153a0e96074833e84e0b..c9fe8a5bf236750b136c09bdc60aba8f086b6601 100644
--- a/SAS/LSMR/src/lsmr/lsmrapp/serializers/specification.py
+++ b/SAS/LSMR/src/lsmr/lsmrapp/serializers/specification.py
@@ -70,3 +70,15 @@ class RunSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = models.Run
         fields = '__all__'
+
+
+class WorkRequestBlueprintSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = models.WorkRequestBlueprintSerializer
+        fields = '__all__'
+
+
+class WorkRequestSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = models.WorkRequestSerializer
+        fields = '__all__'