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...Software analysis design tools http www tutorialspoint com engineering htm copyright and includes all activities which help the transformation of requirement specification into implementation specifications specify functional non expectations from these come in shape human readable understandable documents to a computer has nothing do is intermediate stage helps requirements be transformed actual code let us see few used by designers data flow diagram graphical representation an information system it capable depicting incoming outgoing stored dfd does not mention anything about how flows through there prominent difference between flowchart depicts control program modules dfds depict at various levels contain any or branch elements types diagrams are either logical physical this type concentrates on process for example banking moved different entities shows actually implemented more specific close components can represent source destination storage using following set represented rectan...