Structured systems analysis and design method: Difference between revisions

Revision as of 13:02, 25 April 2013

Revision as of 10:08, 24 May 2013

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*Full data dictionary including relationship between data stores and entities

To produce the models, the analyst works through the construction of the models as we have described. However, the first set of data-flow diagrams ([[Data flow diagram|DFDs]]) are the current physical model, that is, with full details of how the old system is implemented. The final version is the current logical model which is essentially the same as the current physical but with all reference to implementation removed together with any redundancies such as repetition ofheof the information that makes up the users and requirements catalogs.

=== Stage 2 – Business system options ===