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 135
... entry for " typing " is " abstract " then this entry is not present . 1 The approach used by Yourdon in the past ( the DeMarco approach ) that there are many data items , each with a unique name is no longer supported . YSM is now very ...
... entry for " typing " is " abstract " then this entry is not present . 1 The approach used by Yourdon in the past ( the DeMarco approach ) that there are many data items , each with a unique name is no longer supported . YSM is now very ...
Page 287
... entry is the initiator and the second the response . 2.18.3.2 Meaning For an data flow that is not an attributed data item ( see §2.18.3.7 ) , this entry gives the significance of the data item to the system . 2.18.3.2.1 Qualified data ...
... entry is the initiator and the second the response . 2.18.3.2 Meaning For an data flow that is not an attributed data item ( see §2.18.3.7 ) , this entry gives the significance of the data item to the system . 2.18.3.2.1 Qualified data ...
Page 480
... entry is " time " , then the event is temporal ( a “ time ” data flow is not shown on the context diagram ) . The system inputs are any flows required to make the response to the event . These are also seen as system inputs on the ...
... entry is " time " , then the event is temporal ( a “ time ” data flow is not shown on the context diagram ) . The system inputs are any flows required to make the response to the event . These are also seen as system inputs on 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