情境
An online platform connecting customers with experts for consultation sessions, including payment and rating features.
這張圖裡有什麼
看懂背後的決策。
01
Chose to model 'Make Payment' as included in 'Request Consultation' and 'Rate Expert' as extending it upon session completion.
02
Introduced 'Validate Payment' as an included sub-use case to connect to the external payment gateway.
03Kept actors distinct
Customer initiates most use cases, Expert reviews requests, and Payment Gateway external.
When modeling a service marketplace with user roles, external payment systems, and conditional extension (e.g., rating after session).