use case 简析 3
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上面的步骤作了分析下面来介绍STEP2、STEEP3、STEP4、STEP5。英文介绍
Step 3: Documenting the Use Case Course of Events
For each use case identified, its normal course of events must be documented
The normal course of events is a step-by-step description starting with the actor initiating the use case until the end of the business event
Step 4: Identifying Use Case Dependencies
Some use cases may be dependent on others
One use case may leave the system in a state that is a pre-condition for another use case
Model dependencies by use case dependency diagrams.
Step 5: Documenting the Use Case Alternate Course of Events
A use case has one normal event course that was previously defined, and possibly many alternate courses
Alternate courses are deviations or branches from the normal event course
Alternate courses are documented in a separate use case course.
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