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23 Cards in this Set

  • Front
  • Back

Documentation

Narratives, flowcharts, diagrams, and other written materials explaining how a system works

Narrative Description

Written step by step explanation of system components and how they interact

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

Data Flow Diagram

Graphical description of data sources, flows, processes, storage, and transformation

Flowchart

Graphical representation of a system

Document Flowchart

Rep of flow of documents and info between areas of responsibility

System Flowchart

Rep showing relationship among input, processing, and output in IS

Business Process Diagram

Graphical descriptions of business processes used by a company, describe business activities

Data sources and destinations

People and orgs that send/receive data

Data Source Symbol

Square

Data Flow

Movement of data in/out of a process

Data Flow Symbol

Arrow

Processes

Action that transforms data into other data or information

Processes Symbol

Circle

Data Stores

Repository of data

Data Store Symbol

Parallel Lines

Internal Control Symbol

Triangle

Context Diagram

Highest level view of a DFD-Summary level view of data processing system from input to output

Flowchart

Analytical technique that uses symbols to describe some aspect of IS in a clear and concise manner

Four Types of Flowcharting Symbols

input/output, processing, storage, flow/misc

Internal Control Flowcharts

Illustration describing, analyzing, and evaluating internal controls and system strengths/weaknesses

System Flowchart

Depicts relationship among input, processing, storage, output

Program Flowchart

Illustrates logical sequence of operations performed by computer in executing a program