Jan

1
E/B/CUse Case Analysis
Telesterion
Under Construction

• 23
• Jan
• 2003
• Lecture 9

2
Outline

• Previous Business
• HW1 to be returned today (hopefully)
• Electronic submission for HW2 using digital drop
  box
• Reading Questions
• Lecture Contents
• Use Case Analysis
• Entity/Boundary/Controller

3
Requirements Analysis

• Identifying Actors
• Identifying Use Cases
• identify scenarios first ? general use cases
• Refine Use Cases
• Identify Relationships among use cases
• include
• extends

4
Actors

• External entities that interact with system
• Define boundaries of system
• ensures all perspectives taken into account

5
Identify Actor Scenarios

• What functionality is available to each actor?
• Concrete Scenarios
• read like a narrative
• forms the basis for more abstract use cases
• list all participating actors

6
Breakout

• Too much lecturing!
• Break into groups to develop scenarios

7
Use case analysis Review

• Use case name name
• Entry Condition What must be true for
  applicability
• Flow of Events 1. Enumerated set of events
• 2.
• 3.
• Exit Condition Result of use case

8
Friday Assignments

• HW2
• get started

9
References