Term
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Definition
| A textual model that lists and describes the processing details for a use case |
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Term
| Scenarios or use case instances |
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Definition
| unique sets of internal activities within use cases |
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Term
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Definition
| User/actor enters new customer account data, and the system assigns account number creates a customer record and creates an account record |
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Term
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Definition
| User/actor enters customer account number and the system retrieves and displays customer and account data |
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Term
| Process Account adjustment |
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Definition
| User/actor enters order number and the system retrieves customer and order data, actor enters adjustment amount and the system creates a transaction record for the adjustment |
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Term
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Definition
| a condition that must be true before a use case begins |
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Term
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Definition
| What must be true upon the successful completion of a use case |
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Term
| System Sequence Diagram (SSD) |
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Definition
| A diagram showing the sequence of messages between an external actor and the system during a use case or scenario |
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Term
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Definition
| Either a communication diagram or sequence diagram that shows the interactions between objects |
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Term
| Lifeline or object lifeline |
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Definition
| the vertical line under an object on a sequence diagram to show the passages of time for the object |
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Term
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Definition
| notation on a sequence diagram showing repeating messages |
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Term
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Definition
| part of a message between objects that is evaluated prior to transmission to determine whether the message can be sent |
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Term
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Definition
| notation on a sequence diagram showing optional |
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Term
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Definition
| notation on a sequence diagram showing if then else logic |
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Term
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Definition
| A condition during an objects life when it satisfies some criterion, performs some action or waits for an event |
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Term
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Definition
| the movement of an object from one state to another state |
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Term
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Definition
| a diagram showing the life of an object in states and transitions |
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Term
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Definition
| The starting point of a state machine diagram, indicated by a black dot |
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Term
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Definition
| for a particular transition, the state to which an object moves after the completetion of a transition |
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Term
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Definition
| for a particular transition, the original state of an object from which the transition occurs |
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Term
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Definition
| A description of the activities performed as part of a transition |
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Term
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Definition
| a true/false test to see whether a transition can fire |
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Term
| Concurrency or concurrent state |
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Definition
| the condition of being in more than one state at a time |
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Term
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Definition
| A sequential set of connected states and transitions |
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Term
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Definition
| a state containing other states and transitions (that is, a path) |
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