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Over the last twenty-five years of my career. working with several teams through several iterations, I developed very comprehensive, complete methodolgy for the definition, discovery, design, and implementation of information systems.
This is, in fact, the only methoidology I encountered in fifty years - starting with Yourdon in 1978 to various forms circa 2015 - which addresses the full cycle from definition of business needs to ultimately reconcilling program code implementing those needs.
The diagrams below hint at most of the major stages of DISM. However there is a great deal more to this large body of work. Please contact me if you would like to discuss any of the non-=proprietary aspects of DISM.
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Conceptual view of information system development as an endless cycle sucked into the black hole of programming, possibly emerging as something useful
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See
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Sample DFD illustrating the function and rules of its construction to answer the question "What data do we need?" by examining strictly "What data do we use"?"
See:
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Illustration of classic Entity-first approach for discussion of its flaws and failures
see:
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A sample Object Role Model in the refORM enhanced method
see:
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Complete Dwelle Indormation Systems Methodology (DISM)
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