1. Data Flow Diagrams (DFDs) Mr.Prasad Sawant Department Of Computer Science Prof .Ramkurshana More Arts, Commerce and Science College Akurdi. Mobile :9665755707 Email:sawanprasad@gmail.com Blog:http://prasadmsawant.blogspot.com/
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3. DFD Symbols (Gane & Sarson) Process Data Flow Data Store Source/Sink (External Entity)