Structured analysis and design technique: Difference between revisions

Revision as of 11:02, 18 April 2006

Revision as of 11:03, 18 April 2006

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'''The Semantics of Arrows'''

For activities:

Inputs are data that are consumed by the activity

Outputs are produced by the activity

Controls influence the execution of an activity but are not consumed

For data:

Inputs are activities that produce the data

Outputs consume the data

Controls influence the internal state of the data