Vista Clinic intends to revamp its hospital management system and requires your expertise to manage the tasks. You were tasked with creating four use-case diagrams to show the roles and...

Vista Clinic intends to revamp its hospital management system and requires your expertise to manage the tasks. You were tasked with creating four use-case diagrams to show the roles and responsibilities of actors. The four subsystems that must be modelled are as follows:
• Patient file system
• Accounting system
• Consultation system
• User administration system

Create four use-case diagrams for the above systems and use the following instructions for your scenario:
1. Place the actors and use cases in a use case diagram using your modelling tool.
2. Name the use case diagrams appropriately to represent the subject area for that diagram.

3. Since actors and use cases can appear in various diagrams, it is expected that you must clearly label them and use notes where possible. A minimum of 4 and a maximum of 8 use cases may be used. In total, you should have four use case diagrams to represent each system above.
4. Ensure to use both > and > relationships all the use-case diagrams.
5. Ensure that you show the system boundary in at least one-use case diagram.
6. Stereotype the actors and use cases appearing in the use case diagram.