sentences:  Work measurement, as the name suggests, provides management with a means of measuring the time taken in the performance of an operation or series of operations in such a way that ineffective time is shown up and can be separated from effective time.In this way its existence, nature and extent become known where previously they were concealed within the total.To see how much work has been done by the worker and how much salaries is given to him
  
  Revealing existing causes of ineffective time through study, important though it is, is perhaps less important in the long term than the setting of sound time standards, since these will continue to apply as long as the work to which they refer continues to be done.