Specifying What Has to Be Done

Specification is the task of precisely describing the software to be written. It is a good rule to spend considerably more time with specification than with programming. Specification can be divided into several categories for describing functionality, user interface design, or technical aspects of the software. 

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Performance standards are the key to an effective safety system. They specify what has to be done, when, by whom, and to what extent and ensure that the system is operating as planned in the achievement of objectives through linking roles and responsibilities to actions in a measurable way. 

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