2.4. Operational Definitions
All variables need to have an operational definition. Major problems occur when the measurement definitions for CTQs and CTPs are inconsistent over time or vary from individual to individual. Ambiguous definitions, such as defective, safe, round, and hot, have no meaning that can be communicated unless they are operationally defined.
An operational definition is a definition that provides communicable meaning to the users of the definition.
An example [see Reference 3] that illustrates the importance of operational definitions involved the 2000 U. S. Presidential election and the disputed ballots in the state of Florida. A review of 175,010 Florida ballots that were rejected for either no presidential vote or votes ...
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