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 161
Model-driven Systems Development YOURDON, Inc. 2.12 : Context Diagram 2.12 Context Diagram 2.12.1 Purpose The context diagram shows the interface between the system and its environment . It highlights the required outputs of the system ...
Model-driven Systems Development YOURDON, Inc. 2.12 : Context Diagram 2.12 Context Diagram 2.12.1 Purpose The context diagram shows the interface between the system and its environment . It highlights the required outputs of the system ...
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Model-driven Systems Development YOURDON, Inc. 2.12 : Context Diagram 2.12.3 Components The context diagram has many of the same components as the data flow diagram . In fact , the context diagram is a particular type of data flow ...
Model-driven Systems Development YOURDON, Inc. 2.12 : Context Diagram 2.12.3 Components The context diagram has many of the same components as the data flow diagram . In fact , the context diagram is a particular type of data flow ...
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... context diagram 2.12.4.1 Example Clean car body free car car in bath car out of bath move into bath move out of bath Assembly line operator 2.12.4.2 Purpose A partial context diagram is used to view a smaller portion of the entire ...
... context diagram 2.12.4.1 Example Clean car body free car car in bath car out of bath move into bath move out of bath Assembly line operator 2.12.4.2 Purpose A partial context diagram is used to view a smaller portion of the entire ...
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