Business Rules
Commonality
Component Hierarchy
Concrete Extension or Inclusion
CRUD
Large Use Case
Layerd System
Multiple Actors
Optional Service
Orthogonal Views
Use-Case Sequence
Access Control
Future Task
Item Lookup
Legacy System
Login and Logout
Message Transfer
Passive External Medium
Report Generation
Stream Input
Translator
Mistake: Alternative Flow as Extension
Mistake: Business Use Case
Mistake: Communicating Use Cases
Mistake: Functional Decomposition
Mistake: Micro Use Cases
Mistake: Mix of Abstraction Levels
Mistake: Multiple Business Values
Mistake: Security Levels with Actors