Use Cases and Use Case Diagrams

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					         Use Cases and Use Case
               Diagrams
Purpose : To identify and partition system
functionality

Identify actors(roles) and use cases

Describe the behavior of the system
Use Cases
Identified the following:

Primary actors
Pre-Condition
Primary Scenario
Secondary Scenario
Post Condition
Allocate Budget (Use Case #1)
Primary Actors:
Headquarters

Pre-Condition:
The time of allocation is the just before the
beginning of each quarter.
Primary Scenario:
Headquarters allocates certain amount of
money to each department.

Secondary Scenario(s):
N/A

Post Condition:
Every department gets its allotted budget
money for the current quarter expenses.