Each POSITION
| K | must be controlled by one and only one ORGANISATION |
| must be allocated one and only one PAYSCALE | |
| may be assignment to one or more ASSIGNMENT | |
| may be associated with one or more CARE GROUP APPLICABILITY | |
| may be require performance of one or more JOB ROLE | |
| may be funded by one or more POSITION NON-NHS FUNDING | |
| may be vacancy for one and only one POSITION VACANCY | |
| may be associated with one or more PROFESSIONAL REGISTRATION FOR POSITION |