YOURDON Systems Method: Model-driven Systems DevelopmentThe method described here draws upon twenty years of experience of YOURDON, Inc., whose business has been applying, adapting, and enhancing system development techniques. This intuitive, model-driven approach to systems development is suitable for both the business information and real-time engineering communities. YOURDON Systems Method (YSM) 3.0 has guided thousands of project teams and individuals, helping them meet tight project deadlines while satisfying user requirements and delivering successful solutions within budget. |
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Page 148
... restriction " field . A restriction must evaluate to true or false and the allowed values for the ADT are those taken from the parent ADT for which the restriction is true ( if no restriction is given , the allowed values are all those ...
... restriction " field . A restriction must evaluate to true or false and the allowed values for the ADT are those taken from the parent ADT for which the restriction is true ( if no restriction is given , the allowed values are all those ...
Page 601
Model-driven Systems Development YOURDON, Inc. 6.5 : Restriction Grammar 6.5 Restriction Grammar This grammar is used to define a restriction of a parent ADT . This ' smaller ' set of values may be : • Defined as a new named ADT : this ...
Model-driven Systems Development YOURDON, Inc. 6.5 : Restriction Grammar 6.5 Restriction Grammar This grammar is used to define a restriction of a parent ADT . This ' smaller ' set of values may be : • Defined as a new named ADT : this ...
Page 602
... restriction of the ADT " cardinal " by : PARENT ADT : cardinal RESTRICTIONS : rank > 0 AND rank ≤ 8 5. A restriction may consist of " restriction a OR restriction b " . If either restriction a or restriction b involves OR or AND , then ...
... restriction of the ADT " cardinal " by : PARENT ADT : cardinal RESTRICTIONS : rank > 0 AND rank ≤ 8 5. A restriction may consist of " restriction a OR restriction b " . If either restriction a or restriction b involves OR or AND , then ...
Contents
Introduction | 1 |
Modelling Tools 35 3 | 35 |
The Enterprise Essential Model | 367 |
Copyright | |
3 other sections not shown
Common terms and phrases
abstract data type access flow allowed associative entity specification bSTD context diagram continuous data flow continuous event flow control process corresponding create data flow diagram data items data process data store defined delete described discrete data flow discrete event flow discrete process discussed Enterprise Essential Model entities and relationships entity relationship diagram entity-event table entry eSTD event store example flow specification function given Guidelines identifier Implementation Model information model inherited Instructor interface internal model machine manual meaning minispec model components Modelling Tools number of occurrences operation organisation output parameters parent ADT participate Patient pencil and paper post-condition process group processors real-world referred relationship frame relationship specification release of YSM response restriction Rules Scheduled course shown stimulus structure structure chart subtype supertype system ERD System Essential Model system modelling techniques terminator Transition Diagram type conversion update variable