From the following investigation notes:
Produce a level 0 context diagram [5 Mks]
Produce a level 1 DFD of the physical system [10 Mks]
Produce a level 2 DFD of the physical reception process [10 Mks]
Produce a level 2 DFD of the physical filing process [10 Mks]
X-Ray Management Investigation Notes
Reception
Patient present X-ray forms obtained from their GP to reception. Each X-ray request form is allocated an appointment which is written on an appointment card and given to the patient. X-ray request form is filed. A diary is maintained which contains details of all appointments. When patients arrive for X-ray, they present their appointment card. A nurse checks the validity of the appointment passes the appointment card to a clerk and takes care of the patient. The clerk generates an X-ray file/report request for the filing section. The X-ray film/report requests are placed in temporary file for collection by the filing section.
Radiographer
On receipt of the X-ray request form, the radiographer takes the appropriate X-ray (called films) and places them in a temporary file for the collection by the filing section. Each appointment results in a set of x-ray films.
Filing Clerk
The filing clerk collects the X-ray film/report request. These request all X-ray films and reports previously generates for the patients. Patients can have many X-ray films and reports. The new X-ray films are attached and the complete set placed in a temporary file for the attention of the radiologist who makes out a report for the appointment. When a copy of the new report is received from the radiologist, all X-ray films and report are received from the radiologist, all X-ray films and reports are returned to their permanent file.