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 324
... Detection mechanism The detection mechanism is what the system uses in order to know that the event has occurred . All events must be recognised . The system can detect that the event has occurred using one of the following techniques ...
... Detection mechanism The detection mechanism is what the system uses in order to know that the event has occurred . All events must be recognised . The system can detect that the event has occurred using one of the following techniques ...
Page 325
... detection Sometimes , for non - temporal events , the arrival of an input may only suggest the event might have occurred . An event - detection process may have to carry out further checks , using this input and other available items to ...
... detection Sometimes , for non - temporal events , the arrival of an input may only suggest the event might have occurred . An event - detection process may have to carry out further checks , using this input and other available items to ...
Page 509
... detection process is rather like that for event 3. However , the response process can be discrete , because the output ( “ platform rotation " ) is discrete . 6. The event - detection processes for events 9 and 10 are different ...
... detection process is rather like that for event 3. However , the response process can be discrete , because the output ( “ platform rotation " ) is discrete . 6. The event - detection processes for events 9 and 10 are different ...
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