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Subject:RE: Data Flow Diagrams From:"Anthony Markatos" <tonymar -at- hotmail -dot- com> To:hbacheler -at- geo -dot- census -dot- gov, techwr-l -at- lists -dot- raycomm -dot- com Date:Fri, 14 Jan 2000 10:16:12 PST
Harry Bacheler asks:
Where does one go to get information of 'good' DFD reference materials?
Tony Markatos responds:
My all-time favorite book is 'Structured Systems Analysis and Specification'
by Tom DeMarco, Yourdon Press 1979 - yes 1979. It is still available
through Yourdon Press.
Next best 'Essential Systems Analysis' 1984 (I forgot the two authors) -
available through Yourdon Press.
Harry, many "rap" DFDs as being out-of-date. (They have been around for over
eight years - before computers they were used on strictly manual systems.)
They are not obsolete. They are not a technology. They are a methodology
to enforce open and honest interpersonal communications in systems projects
- the REAL boggie to be overcome in software development! The problem is
timeless - and no other methodology/technique is so highly focused on