Microsoft PowerPoint seg3101-ch2-3 ElicitationTechniques ppt


Use Case Templates – Multiple Column Form



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Use Case Templates – Multiple Column Form

One column per actor

Allows for a more detailed view
User's actions
System responses
1.
Insert a card in the Card reader
slot.
(card is not valid see alternative 1.1)
2.
Ask for a personal
identification number (PIN). 
3. E
nter a PIN. 
4. C
heck that the user
identification is valid.
(identification is not valid see
alternative 4.1)
5. A
sk User to chose an
operation 
Elicitation Techniques Existing Systems Interviews
Brainstorming Joint Application Design Prototyping
Use Cases


90
SEG3101 (Fall 2010). Requirements Elicitation Techniques
Use Case Templates – Example Template

A. Name
: Give a short, descriptive name to the use case

B. Actors
: List the actors who can perform this use case

C. Goals
: Explain what the actors are trying to achieve

D. Preconditions
: State of the system before the use case

E. Description
: Give a short informal description

F. Trigger
: Describe the event that initiates the activity

G. Summary
: Summarize what occurs as the actors perform the use case

F. Related use cases
: (in accordance with use case diagram)

G. Steps
: Describe each step using some form (single/multiple columns)

H. Postconditions
: State of the system following completion

I. Special Requirements
: Non-functional requirements and constraints
Elicitation Techniques Existing Systems Interviews
Brainstorming Joint Application Design Prototyping
Use Cases


SEG3101 (Fall 2010). Requirements Elicitation Techniques

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