Talk:data flow diagram

The DFD is a diagram that shows how the data manipulated by a system flows through the various processes. You'll see one of several types of symbols in a DFD... a process, a data store, or an external entity. These symbols are connected by arrowed lines showing how the data moves from a data store or external entity, through a process, and back to a data store or external entity. NOTE: A DFD is not a flow chart! A flow chart actually describes a process, whereas in a DFD the entire process is simply denoted by a symbol. unsigned comment by 121.241.114.14