Book Appointment Use Case Example with Extend and Include Analysis

The Book Appointment use case represents a common scenario in healthcare or service-based systems, where a patient or client selects an available timeslot, confirms their details, and finalizes the booking. This example shows how the AI Sequence Diagram Refinement Tool can break down the process into focused sub-diagrams, making it easier to explore specific interactions such as scheduling, rescheduling, or verifying availability.

Step 1: Enter PlantUML of Use Case Diagram

Paste the PlantUML code of the use case diagram into the editor. The preview will instantly render on the right, allowing you to see the full appointment booking flow. From there, you can begin a quick analysis by pressing the Analyze Diagram button.

PlantUML Exampl:

@startuml
' Use Case Diagram for Hospital Management System

left to right direction

' Define actors
actor "Patient" as patient
actor "Doctor" as doctor
actor "Admin Staff" as staff

' Define system boundary (Hospital Management System)
rectangle "Hospital Management System" {
' Primary use cases
usecase "Book Appointment" as UC1
usecase "View Medical Records" as UC2
usecase "Update Medical Records" as UC3
usecase "Generate Bill" as UC4
usecase "Process Payment" as UC5

' Secondary use cases for relationships
usecase "Login" as SUC1
usecase "Verify Insurance" as SUC2
usecase "Send Notification" as SUC3
}

' Actor associations
patient --> UC1
patient --> UC2
patient --> UC4
doctor --> UC2
doctor --> UC3
staff --> UC4
staff --> UC5

' Include relationships
UC1 .> SUC1 : <<include>>
UC2 .> SUC1 : <<include>>
UC3 .> SUC1 : <<include>>
UC4 .> UC5 : <<include>>
UC4 .> SUC2 : <<include>>

' Extend relationships
SUC3 .> UC1 : <<extend>>
SUC3 .> UC4 : <<extend>>

@enduml

Step 2: Use Case Table

The diagram is automatically turned into a table format. This makes it simple to read through the actors, relationships, and extended or included use cases without needing to interpret the diagram visually. It provides a structured way to verify all system interactions.

Step 3: Sub-Diagram Generator

Select a Base Use Case

Choose Book Appointment as the base use case. The tool extracts all related include and extend connections to build a smaller, focused diagram that highlights only the relevant parts of the system.

Generated Sub-Diagram

Click Generate Sub-Diagram to produce a simplified PlantUML diagram that highlights only the Book Appointment use case and its relationships. The diagram will be updated in the preview area, showing a clear view of the main flow.

More Actions

Once the sub-diagram is generated, you can continue working with it in different ways:

• Copy Code – Grab the PlantUML code to reuse it in your project or adjust it for another scenario.
• Open in VP Online – Instantly load the diagram into Visual Paradigm Online for deeper editing, styling, or collaboration with your team.
• Download Image – Save the rendered diagram as an image for reports, presentations, or documentation.