Library Information System Data Flow Diagram

This is a context level data flow diagram of a library (book) information system. The example illustrates the flow of information between the system of interest (Book information system) and its external entities (the Librarian and the File System). It provides an understanding of the main type of data that evoke actions in the Book information System along with the external entities that are directly connected to it.

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Library Information System DFDContext Diagram