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23 Cards in this Set
- Front
- Back
Documentation |
Narratives, flowcharts, diagrams, and other written materials explaining how a system works |
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Narrative Description |
Written step by step explanation of system components and how they interact |
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What are the three levels of understanding with documentation |
Read-How does system work Evaluate-Does the documentation effectively explain how the system works Prepare-explain and prioritize information about how the system works |
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Data Flow Diagram |
Graphical description of data sources, flows, processes, storage, and transformation |
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Flowchart |
Graphical representation of a system |
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Document Flowchart |
Rep of flow of documents and info between areas of responsibility |
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System Flowchart |
Rep showing relationship among input, processing, and output in IS |
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Business Process Diagram |
Graphical descriptions of business processes used by a company, describe business activities |
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Data sources and destinations |
People and orgs that send/receive data |
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Data Source Symbol |
Square |
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Data Flow |
Movement of data in/out of a process |
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Data Flow Symbol |
Arrow |
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Processes |
Action that transforms data into other data or information |
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Processes Symbol |
Circle |
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Data Stores |
Repository of data |
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Data Store Symbol
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Parallel Lines |
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Internal Control Symbol |
Triangle |
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Context Diagram |
Highest level view of a DFD-Summary level view of data processing system from input to output |
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Flowchart |
Analytical technique that uses symbols to describe some aspect of IS in a clear and concise manner |
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Four Types of Flowcharting Symbols |
input/output, processing, storage, flow/misc |
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Internal Control Flowcharts |
Illustration describing, analyzing, and evaluating internal controls and system strengths/weaknesses |
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System Flowchart |
Depicts relationship among input, processing, storage, output |
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Program Flowchart |
Illustrates logical sequence of operations performed by computer in executing a program |