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CHAP 8 (BEHAVIORAL MODELING) (SSD (ssd Notation (STEPS : (Identify input…
CHAP 8 (BEHAVIORAL MODELING)
USE CASE DESCRIPTION
an activity that the system performs, usually in response to a request by a user
a textual model that list and describes the
processing details for a use case
Brief desc
Fully developed desc
Use case name
Scenario (if needed)
Triggering event
Brief description
Actors
Related use cases (<<includes>>)
Stakeholders
Preconditions
Post conditions
Flow of activities
Exception conditions
TEMPLATES INCLUDE :
ACTIVITY DIAGRAM
this shows flow of activities only
SSD
usually used together with use case description/activity diagram
shows how actor interacts with system
enters input data
receive output data
ssd Notation
Actor
:System
Lifeline
Message
Note
SSD Notation Loop Frame
SSD Notation Loop Alternate
SSD Notation Opt Frame
SSD Notation Alt Frame
STEPS :
Identify input message
Describe the message from the external
actor to the system using the message notation
Identify any special conditions on input messages
Identify and add output return values
STATE MACHINE DIAGRAM
A UML diagram showing the life (changing) of an object in states and transitions
STEPS :
Review the class diagram and select classes
identify status conditions
identify exit transitions
Sequence the State-Transition Combinations in Correct Order
Look for Concurrent Paths
Look for Additional Transitions
extend each transaction
Review and test