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In industrial engineering, the standard time is the time required by an average skilled operator, working at a normal pace, to perform a specified task using a prescribed method.〔Zandin 2001, Section X, Chapter 5.1〕 It includes appropriate allowances to allow the person to recover from fatigue and, where necessary, an additional allowance to cover contingent elements which may occur but have not been observed. ==Usage of the standard time== Time times for all operations are known. * Staffing (or workforce planning): the number of workers required cannot accurately be determined unless the time required to process the existing work is known. * Line balancing (or production leveling): the correct number of workstations for optimum work flow depends on the processing time, or standard, at each workstation. * Materials requirement planning (MRP): MRP systems cannot operate properly without accurate work standards. * System simulation: simulation models cannot accurately simulate operation unless times for all operations are known. * Wage payment: comparing expected performance with actual performance requires the use of work standards. * Cost accounting: work standards are necessary for determining not only the labor component of costs, but also the correct allocation of production costs to specific products. * Employee evaluation: in order to assess whether individual employees are performing as well as they should, a performance standard is necessary against which to measure the level of performance. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Standard time (manufacturing)」の詳細全文を読む スポンサード リンク
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