BUS 362 Lecture Notes - Lecture 4: Data Flow Diagram, Computer Simulation, System Context Diagram
8 Aug 2016
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Document Summary
The steps outlined in the use case can be organized into a logical process into a dfd. The major inputs and major outputs listed on the use case provide a list of the sources and destinations, respectively, of the inflows and outflows of the processes. The information for steps section shows the data flowing in or produced by each step of the use case, correspond to data flows that enter or leave each process on the dfd. Process: an activity or function performed for a specific business reason, can be manual or computerized, includes the following: A name starting with a verb and ending with a noun e. g. determine quantity request. A description clearly describe steps of the process (guide the programmer) Should contain at least one input and one output dataflow: logical process models omit any processes that simply move or route data and leave the data unchanged, you include logical processes that:
