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Graphical description of how data flows from a data source through transformation processes to data stores and destinations documentation Written, step-by-step explanation of system components and how they interact narrative description Narratives, flowcharts, diagrams, and other written materials that explain how a system works data flow diagram Pictorially illustrates the flow of documents and data among areas of responsibility within an organization flowchart Uses a specialized set of input/output, processing, storage, flow, and other symbols to describe pictorially several different aspects of a system document flowchart A visual way to describe the different steps or activities in a business process. system flowchart Pictorially illustrates the sequence of logical operations performed by a computer in executing a program program flowchart Pictorially depicts the relationships among system input, processing, storage, and output business process diagram