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| View Original: | Subway_Fare_Card_Machine_Decision_Diagram.jpg (586x549) | |||
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| Keywords: Subway Fare Card Machine Decision Diagram.jpg en 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 http //www hf faa gov/webtraining/Usability/u19_tools3 htm faa gov webtraining FAA 2008 PD-USGov Decision diagrams | ||||
