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 3
... methods The evolution of system development methods has been gradual , with many people contribut- ing to their improvement . The three stages in the evolution of system development methods may be identified : 1. First generation methods ...
... methods The evolution of system development methods has been gradual , with many people contribut- ing to their improvement . The three stages in the evolution of system development methods may be identified : 1. First generation methods ...
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... methods During the first generation of structured methods , analysts and designers tended to be either : • Process - oriented : concentrating on system functions and regarding the data as only being present to support system functions ...
... methods During the first generation of structured methods , analysts and designers tended to be either : • Process - oriented : concentrating on system functions and regarding the data as only being present to support system functions ...
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... methods were only supported with pencil and paper . The CASE tool allows diagrams and specifications to be stored and checked against each other . In effect , they provide an ' electronic pencil and paper ' approach . An example is ...
... methods were only supported with pencil and paper . The CASE tool allows diagrams and specifications to be stored and checked against each other . In effect , they provide an ' electronic pencil and paper ' approach . An example is ...
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