Work Study Analysis
Y B WEERASINGHE
National Institute of Business Management
* Work Study is the systematic examination of the methods of carrying out activities such as to improve the effective use of resources and to set up standards of performance for the activities carried out.
* A generic term for those techniques, particularly method study and work measurement, which are used in the examination of human work in all its contexts, and which lead systematically to the investigation of all the factors which affect the efficiency and economy of the situation being reviewed, in order to effect improvement.
• Objectives for the method study, these can be:
• Increase operator performance
• Improve safety, decrease hazards and fatigue
• Develop methods for other equipment.
The outputs of a Method Study will be.
• Work Instructions
• Systematic Method description involving, operators, equipment, materials and procedures. These can be of a graphical or narrative nature.
• Flow charts.
• Recommendations for improvement.
Time Study Approach
Work Measurement is the application of techniques designs to establish the time for a qualified Worker to carry out a task at a defined rate of working. Time Study is a form of Work Measurement.
The purpose of Time Study is to:
• Establish Standard Times
• Rate Operator performance
• Gain information to calculate overall production capabilities and Data for capacity planning.
• Establish the total Work content of finished goods.
The benefits from a Time Study will be:
• Knowledge about Standard Times to be expected
• Ability to estimate total Work content
• Operators can be appraised on factual grounds
• Some labour regulation might require Standard Times on the basis of solving Labour disputes.
The procedure for a Time Study will be:
1. Select the tasks
2. Record the facts
3. Analyse them
4. Calculate basic and standard times for the task
5. Agree the method and its related time
The inputs required for a Time Study are:
• Documented results of a method study for the job to be measured
• Observations of the job to be studied
• Time readings for the job to be measured from the Stop Watch.
The outputs from a Time Study will be:
• Standard times for the Job that has been measured
• Completed Time Study Sheet with ratings and times
• Knowledge about the work content for specific Products and processes.
In simple terms work study measures work and defines performance standards. There are many uses for time estimates for tasks. Operations managers can guess or assume that a job is done in the correct time or they can be systematic and use time data gathered by a systematic technique which has reasonable accuracy. Whether or not the worker likes it - pushed hard in trying to complete a job with very tight measured work standards which don't anticipate the knotty problem encountered with a particular task - is another matter.
Work study/industrial engineers need time data to plan and evaluate production/transformation processes. Rewards systems need such data for performance related bonuses. Cost calculations need to incorporate operative and machine job times Costing systems reference work study data. Work study data contributes to:
• Improved methods to raise output, quality, reduce wastage, enhance reliability and ensure safety.
• Standard time data contributes to capacity planning, scheduling, and control of staff, asset utilisation and quality improvement. Service and after-sales method improvements may be obtained as well as process improvement and better raw...