| Entity Names | Description | Aliases | Occurrence |
| Staff | General term describing all staff at Wellmeadows |   | Each staff member works at the hospital |
| Medical Director | Maintains control over the use of hospital resources(staff, bed, supplies) | Director | There is only one Medical Director at this hopital |
| Charge Nurse | Responsible for day to day operations of ward/clinic | Nurse/Head Nurse | Each Department has a Charge Nurse responsible for that ward |
| In-Patient | Patient addmitted to a ward | Patient | Mutiple patients can be admitted to a ward. A patient is assigned only to a given ward |
| Out-Patient | Patient referred to hospital but not admitted | Patient | Multiple patients can go to Out-patient clinic |
| Patient | General term describing all patients reffered to hospital |   | Each patient reffered to hospital is diagonosed and then reffered to either ward to to out-patient clinic |
| Supplier | Responsible for supplying all supplies |   | Multiple suppliers can supply the hospital. All suppliers work with Medical Director |
| Supplies | General terms describing all supplies required by the hospital |   | There are two kinds of suppliers: one supplying surgical & non-surgical, another one supplying pharma drugs |
| Surgical/Non-Surgical Supplies | Refers to all surgical and non surgical supplies reqd. by any ward | Supplies | Charge Nurse can order these supplies based on ward needs |
| Pharma Supplies | Refers to all pharma supplies reqd. by any ward | Supplies | Charge Nurse can order these supplies based on ward needs |
| Ward Requisition | Used for requesting any kind of supplies in any ward/clinic |   | Can be generated by any ward. A given ward requisition is generated by a given ward. |