Operational definitions are also used to define system states in terms of a specific, publicly accessible process of preparation or validation testing , which is repeatable at will . For example, 100 degrees Celsius may be crudely defined by describing the process of heating water at sea level until it is observed to boil . An item like a brick, or even a photograph of a brick, may be defined in terms of how it can be made. Likewise, iron may be defined in terms of the results of testing or measuring it in particular ways .
Operational definitions are also used to define system states in terms of a specific, publicly accessible process of preparation or validation testing . For example, 100 degrees Celsius may be operationally defined as the process of heating water at sea level until it is observed to boil .
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, which is repeatable at will
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crudely defined by describing
operationally defined as
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. An item like a brick, or even a photograph of a brick, may be defined in terms of how it can be made. Likewise, iron may be defined in terms of the results of testing or measuring it in particular ways