Each SERVICE REQUEST
| K | must be for one and only one PATIENT |
| must be made by one and only one CARE PROFESSIONAL ORGANISATION | |
| or must be made by one and only one ORGANISATION | |
| or may be the reason for one or more TRANSPORT REQUIREMENT | |
| must be made to one and only one CARE PROFESSIONAL ORGANISATION | |
| must be part of one and only one PATIENT PATHWAY | |
| must be categorised by one and only one TREATMENT FUNCTION | |
| may be resultant in one or more APPOINTMENT | |
| may be the result of one and only one CARE ACTIVITY | |
| may be the initiator of one or more CARE ACTIVITY | |
| may be the result of one and only one DECISION TO REFER | |
| may be offered from one and only one HEALTH PROGRAMME | |
| may be the reason for one or more PLANNED ACTIVITY | |
| may be the main one linked to one or more SERVICE REQUEST RELATIONSHIP | |
| may be a subsequent one in one or more SERVICE REQUEST RELATIONSHIP |