Review: Gliffy makes it simple and easy to create diagrams, no download necessary. By Erez Zukerman. Apr 16, 2013 9:32 am PDT. ... and an eight-step flow chart called Who Stole My Lunch.

Physical data flow diagrams. Physical data flow diagrams provide detailed implementation information. They may reference current systems and how they operate, or may project the desired end-state of a ...