Difference between Time Study and Motion Study

Time Study and Motion Study are two kinds of Work Study. The study that determines the standard time taken to perform a job is known as Time Study. Time study depends upon the volume, frequency of tasks, cycle of operation, etc.  Under this, time is divided into a series of elements, and the time taken to perform each element (task) is recorded with time-measuring devices, like stopwatches. The main objective of the time study is to determine the time and number of workers required to complete a task, so that incentive schemes and labour costs can be identified.  It also aims to differentiate between efficient and inefficient workers.

While working in a factory, a worker has to move from one place to another, which takes time and effort and causes fatigue. The study of movements like lifting, putting objects, sitting and changing positions, etc., is known as Motion Study. This study aims at eliminating unnecessary movements of workers in a factory so that their time and energy are saved. Taylor, along with his associate, had a close observation and discovered the motions which are productive, incidental, and unproductive. This study helps in setting a standard method of performing a task. It also helps in achieving the objectives effectively and efficiently and saves labour costs.

Difference between Time Study and Motion Study:

Basis	Time Study	Motion Study
Meaning	The study that determines the standard time taken to perform a job is known as Time Study.	The study of movements like lifting, putting objects, sitting and changing positions, etc., is known as Motion Study.
Aim	Its main aim is to determine the standard time taken to complete a task.	It aims to eliminate unnecessary movement while doing a work.
Development of new method	It does not develop new methods of doing work.	It develops new methods of doing work by eliminating unnecessary movements.
Tools of study	Measuring devices like stop watches are used in the study.	Movie cameras connected with micro-chronometers are used in the study.

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