TimeStudy教程.doc

Organisation Progress Referential “Determination of Unit Times”. AIM This referential describes the methods and tools to be implemented for establishing unit times. AREA OF APPLICATION This referential is to be applied by 01/09/2005 at the latest in all the industrial entities in the Group. The users of the referential are the members of the Organisation and Progress métier who have been validated for the post of Study Organiser. DEFINITIONS Unit Time : This is the time it takes a capable and trained operator to complete a Unit of Production (U.P) or a Unit of Work in determined conditions, using the method, machines and equipment provided. You will find an example of a Unit Time sheet at the end of this document. Chronométrage (Time-study)?: Time-study is the operation which consists in: Checking that the Method of Work is correctly applied. Assessing and recording the working rate of the operator observed. Measuring and recording times. You will find an example of a time recording sheet at the end of this document. Work Element : This is a portion of work demarcated by two measurement references and consisting of an ordered sequence of defined actions of a homogeneous nature. Concept of rate : An operator’s working rate is his instantaneous speed of execution of a useful piece of work when this speed is dependent solely on the operator’s working rhythm. This rate or speed takes account of the execution conditions (difficulty, precision, ergonomics, etc.). Rating : This is the operation by which a qualified organiser assesses the working rate of an operator in relation to his mental image of a rate of 100. Reference rate : The reference rate is known as “Rate 100”. This is the working rate which any average operator, capable, trained and qualified to occupy the post, can maintain constantly throughout his working time at the post (generally an 8 hour shift), without damaging his health. This rate is calibrated on the pre-determined time standards (M.T.M.)