...Considering the allowable accuracy of task time depending on the purpose of use, it is best to use the simplest possible time setting method. Task time setting methods, listed in order of simplicity, include empirical estimation, work sampling, the stopwatch method, the time formula/standard data method, MTM (methods time measurement), and WF (work factor). The stopwatch method is a method of observing an entire task, capturing the time for each component task that constitutes it, and setting the task time, whereas work sampling is a method of observing only the phenomena at the time of sampling from within the task activity and making a statistical estimate. ... *Some of the terminology that refers to "methods time measurement" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…使用目的による作業時間の許容精度を考えて,できるだけ簡易な時間設定法を用いるのがよい。簡易な順に作業時間設定の手法をあげると,経験見積り法,ワークサンプリング,ストップウォッチ法,時間公式・標準資料法,MTM(methods time measurement),WF(work factor)などがある。ストップウォッチ法は,ある作業活動の全部を観測してそれを構成する要素作業ごとの時間をとらえ,作業時間を設定する方法であり,これに対してワークサンプリングは,作業活動の中からサンプリング時点の現象のみを観測して統計的に推定する方法である。… ※「methods time measurement」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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