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 116
... Rules of association - Many relationships and associative entities have rules that specify a condition or conditions that must be satisfied by entities participating in the relationship . These are termed rules of association , or just ...
... Rules of association - Many relationships and associative entities have rules that specify a condition or conditions that must be satisfied by entities participating in the relationship . These are termed rules of association , or just ...
Page 574
... RULES : < Employee > reports to X satisfies : This indicates that there are going to be some rules about which occurrences of " Employee ” can participate in the relationship as a manager , but there are no restrictions on which ...
... RULES : < Employee > reports to X satisfies : This indicates that there are going to be some rules about which occurrences of " Employee ” can participate in the relationship as a manager , but there are no restrictions on which ...
Page 576
... rule clauses , then they may be left as free variables . For example : RULES : ... satisfies : AND S is C is scheduled to run at < Location > , starting on < Day > ... This allows rules to be stated about the course , but not the ...
... rule clauses , then they may be left as free variables . For example : RULES : ... satisfies : AND S is C is scheduled to run at < Location > , starting on < Day > ... This allows rules to be stated about the course , but not the ...
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