ACCT 309 Chapter Notes - Chapter 3: Data Flow Diagram, Flowchart, Internal Control

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6 Dec 2018
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Documentation: explains how a system works, including the who, what, when, where, why, and how data entry, data processing, data storage, information output, and system controls. Narrative description: a written step-by-step explanation of system components and interactions. Data flow diagram: graphically describes the flow of data within an organization. Data source/data destination: entities that send or receive data that the system uses or produces: entity can be both source and destination. Data flow: the movement of data among processes, stores, sources, and destinations: more than one data flow moving together one line is used, customer payment. Data store: a repository of data: dfds do not show physical storage medium of data. The people and organizations that send data from the system are represented by square boxes. Data designations are also referred to as data sinks. The flow of the data into or out of a process is represented by curved or straight lines with arrows.

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