Structured analysis and design technique: Difference between revisions

Revision as of 12:20, 29 June 2006

Revision as of 11:18, 21 October 2006

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== Techniques ==

SADT uses two types of diagrams: [[activity modelsmodel]]s and [[data modelsmodel]]s.

SADT uses two types of diagrams: activity models and data models.

It uses arrows to build this diagrams.

'''===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.

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{{computer-stub}}

[[Category:Software engineering]]

[[fr:Analyse fonctionnelle descendante]]