Update data-model.md

input/pagecontent/data-model.md

@@ -1,49 +1,9 @@
 ### Summary
 
-The RA record is made up of Consent, Condition, Flag and Provenances resources.  The Consent, Condition and Flag resources are linked via a Patient resource.  Provenance of all resources that make up an RA record must be stored.  This is modelled here as a contained resource, and as such has no lifetime outside of the constituent RA record resources.
+The Patient Flag is made up of Patient Flag and Provenances resources.  The  Flag resources are linked via a Patient resource. This is modelled here as a contained resource, and as such has no lifetime outside of the constituent Patient Flag resources.
 
 ### Data Model
 
-<div class="mermaid">
-erDiagram
-  Patient {
-    NHS-number identifier
-  }
-  Consent {
-    patient Patient
-    category CodeableConcept
-    contained Provenance
-  }
-  Condition {
-    patient Patient
-    code CodeableConcept
-    category CodeableConcept
-    contained Provenance
-  }
-  PatientFlag {
-    patient Patient
-    code CodeableConcept
-    category CodeableConcept
-    contained Provenance
-  }
-  ProgrammeFlag {
-    patient Patient
-    code CodeableConcept
-    category CodeableConcept
-    contained Provenance
-  }
-  Provenance {
-    recorded DateTime
-    agent Agent
-  }
-
-  Patient ||..|| Consent : provides
-  Patient ||--o{ Condition : has
-  Patient ||--o| PatientFlag : has
-  Patient ||--o{ ProgrammeFlag : has
-
-  Consent ||--|| Provenance : contains
-  Condition ||--|| Provenance : contains
-  PatientFlag ||--|| Provenance : contains
-  ProgrammeFlag ||--|| Provenance : contains
+<div>
+    <img style="max-width: 70%" alt="Patient Flag Data Model Diagram." src="data-model-PatientFlag.drawio.png"/>
 </div>