ISYS 401 Chapter 7
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Created by:
lanesawyer on October 24, 2011
Description:
Chapter 7 vocabulary
Classes:
BYU Information Systems Junior Core
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17 terms
Terms | Definitions |
|---|---|
 activity diagram | a type of workflow diagram that describes the user activities and their sequential flow |
| actor | someone who uses the system (has hands) |
| agent | titles in activity diagrams that represent who does each activity |
| ending activity | the terminating point of an activity diagram |
| guard | a true/false tests to see whether a transition can fire |
| input message | data going to the system in a system sequence diagram |
| lifeline | the vertical line under an object on a sequence diagram to show the passage of time for the object |
| loop | used to repeat a section of the system |
| note | extra explanation on a system sequence diagram |
| object | represents an entire automated system in a systems sequence diagram |
| output message | data returning from the system in a system sequence diagram |
| starting activity | beginning point for an activity diagram |
| swimlane | a rectangular area on an activity diagram representing the activities of a single agent |
| synchronization bar | a symbol in an activity diagram to control the splitting or uniting of sequential paths; also used for loops |
| system sequence diagram | a diagram showing the sequence of messages between an external actor and the system during a use case or scenario |
| transition | the movement of an object from one state to another state |
| use case diagram | a diagram to show the various user roles and how those roles use the system |
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