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21 Cards in this Set
- Front
- Back
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Use Case Model
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a collection of models that can be used to capture system requirements based on use cases with the OO approach
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Use Case Diagram
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a diagram to show the various user roles and how those roles use the system
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System Sequence Diagrams (SSDs)
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a diagram showing the sequence of messages between an external actor and the system during a use case scenario
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Message
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the communication between objects within a use case
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Domain Model
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a model that describes classes of objects and their states
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State Machine Diagram
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a diagram showing the life of an object in states and transitions
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Package
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a symbol used to denote a group of similar elements
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Interaction Diagram
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either a communication diagram or sequence diagram that shows the interactions between objects
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Lifeline or Object Lifeline
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the vertical line under an object on a sequence diagram to show the passage of time for the object
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True/False Condition
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part of a message between objects that is evaluated prior to transmission to determine whether the message can be sent
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State
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a condition during an object's life when it satisfies some criterion, performs some action, or waits for an event
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Transition
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the movement of an object from one state to another state
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Pseudostate
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the starting point of a state machine diagram, indicated by a black dot
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Destination State
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for a particular transition, the state to which an object moves after the completion of a transition
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Origin State
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for a particular transition, the original state of an object from which a transition occurs
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Message Event
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the trigger for a transition, which causes the object to leave the origin state
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Guard Condition
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a true/false test to see whether a transition can fire
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Action Expression
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a description of the activities performed as part of the transition
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Concurrency, or Concurrent State
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the condition of being in more than one state at a time
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Path
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a sequential set of connect states and transitions
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Composite State
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a state containing other states and transitions (that is, a path)
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