Subway Fare Card Machine Decision Diagram



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English: Subway Fare Card Machine Decision Diagram:

Decision/Action Diagrams - These diagrams are similar to functional flows except that decision points are added. Each function is expressed as a "verb-noun" combination with occasional adjectives or other modifiers. Each decision point is placed in a diamond-shaped outline symbol and written in question form. The question must be binary, answerable by a "yes" or "no" response. Both functional action blocks and decision diamonds are labeled with reference numbers, similar to those used for functional flow diagrams. These are necessary to ensure traceability.

Shown above is a Decision Diagram for a subway fare card machine.
Date 2008(2008)
Source faa.gov webtraining
Author FAA
Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See 206.02(b) of Compendium II: Copyright Office Practices). It also does not apply to certain US coins, see The US Mint Terms of Use.

This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

Public Domain


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