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WORK STUDY.

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Presentation on theme: "WORK STUDY."— Presentation transcript:

1 WORK STUDY

2 Productivity=Output/Input
Productivity has a number of different meanings General equation of productivity Productivity=Output/Input The others; *Labor productivity=units produced/hours worked *Capital productivity=output/capital input *Material productivity=output/materials input Determine a productivity term related with you! ----Total scores / Target skores?

3 An input-output model of the firm

4 Labor productivity index=Total annual output/the total hours worked.
Labor productivity and “output per hour” U.S. Bureau of Labor Statistics holds a standard guidelines. All relationships are determined output/input Labor productivity index=Total annual output/the total hours worked. Output=“real” annual sales Input= average number of employees×average number of hours during the year………….

5 Technological Innovation
Changes in technology =increase in productivity expected. Technological innovations=increased labor output, a reduction in costs, reduction in the price of the product or service. Examples; dial telephone? farm machinery? Computer? What are the high technology requires? increase in investment Increase in employees’ skills Heavy working conditions Computer is an integral parts of machine

6 Measurement of Individual Worker Productivity
Worker performance can be measured by worker productivity It is necessary standard time of a job. For example, if the standard time to assemble a bench grinder is 3.00 minutes and if the operator 260 grinders during the day. Output? Input ? 260×3.00=780 8 hours (480 minutes) Performance index=

7 Productivity of Capital
The productivity of capital= tools, machines and other operating facilities Factors: maintenance, obsolescence Million dolar investments…..

8 Motion and Time study and Productivity
What is relations between Motion and Time study and Productivity? Productivity of Organization and Individuals Elimination of unnecessary work The design of methods and procedures Most effective and least effort System must be suited to the person. Measuring work methods for determining a performance index or productivity index.

9 Motion and Time study and Productivity
Motion and Time Study, Problem solving processes Industrial engineers Staff specialist Managers Supervisors Employees Design of jobs, determine work schedules, human effectiveness, improving life satisfactions

10 Time and Motion Study: Defined
A method created to determine the ‘correct time’ it takes to complete a certain task A method to establish ‘the one best way to perform a task’ Tine and Motion Study Defined: All of the motions in a job need to be established so a sequence of motions can be determined to ensure that the task is being preformed in the most efficient and effective way.

11 Time and Motion Study: Purposes
To end ‘goofing off’ and to establish what constituted a fair days work To make sure that the job being evaluated does not include any unnecessary motion by the worker

12 Time and Motion Study: History
Frederick W. Taylor and his followers developed and refined the Time Study Frank B. Gilbreth and his wife Lillian developed and refined the Motion Study Historically the two studies are discussed individually, today they generally are discussed as one

13 Time and Motion Study: In your Organization
Historically: T&M Studies were used in the manufacturing industry to evolve pay scales with the thought that money was the only motivation for work This idea, that people are only motivated by money, has been disproved. Things like job satisfaction and environment are more important to employees than pay.

14 Time and Motion Study: In your Organization cont’d
Today: T&M Studies can be effective for performance evaluations T&M Studies can be used for planning purposes in order to predict the level of output that may be achieved T&M Studies can be used to uncover problems and create solutions T&M Studies can be used for time cost analysis The effective cost of an employee, per unit of time for the task they are primarily responsible for. The allocation of time to various ‘productive’ and ‘non-productive’ tasks. Review of alternatives to make the best use of time.

15 Time and Motion Study: Objective
The objective of the Time and Motion Study is to determine a ‘normal’ or average time for a job, by using observers to record exactly how much time is being devoted to each task.

16 How it Works Step-by-Step
1. Establish the standard job method. 2. Break down the job into elements 3. Study the job. 4. Rate the worker’s performance Complete step one by analyze the job using methods analysis, this will allow you to be sure the best method is being used. Complete step two by breaking the job down into short tasks with ‘break points’ in between. Complete step three by conducting the actual timing of each job element with the traditional stopwatch attached to a clipboard or a hand held electronic time-study machine. Complete step four by using a performance rating factor of 100 percent. 100 percent reflects a normal work performance, less than 100 percent means a below average performance, greater than 100 percent means better then a normal performance.

17 How it Works Step-by-Step cont’d
5. Compute the average time 6. Compute the normal time Nt=(t)(RF) or Normal Time=(elemental average time) (rating factor) 7. Compute the standard time ST=(Nt)(1+AF) or Standard Time=(Normal cycle time)(1+Allowance factor) 5. To complete step five a sufficient number of job cycles need to be observed, and then an average time. 6. After computations are made for the normal time, the normal cycle time needs to be computed before step 7. This is done by summing the elemental normal times. The directions for finding the rating factor can be found in step 4. 7. An allowance factor is inserted into the formula for work delays like mechanical breakdowns, personal delays, and normal fatigue.

18 Time and Motion Study: Exercise
Element t (min) RF 1 2.51 1.10 2 5.29 1.15 3 4.21 4 3.57 1.05 Compute the standard time for this job using an allowance factor of 20 percent.

19 To get the normal cycle time you sum the Nt values. Here = 1.73 min
Solution Use the formula (t)(RF)=Nt Element 1 (.251)(1.10)=.2761 Element 2 (.529)(1.15)=.6084 And so on for element 3 and 4 Element T(min) RF t Nt 1 2.51 1.10 .251 .2761 2 5.29 1.15 .529 .6084 3 4.21 .421 .4631 4 3.57 1.05 .357 .3749 To get the normal cycle time you sum the Nt values. Here = 1.73 min

20 Solution To compute the standard time use the 20 percent allowance factor Nt(1+AF)=ST Here 1.73(1+.20)=2.08 So the standard time for each element of this job is 2.08 minutes

21 Indirect factory labor?
Increasing the use of mechanization and automation direct labor decreased and attention was given to the indirect labor. Factory operations; machinesmore complex highly trained people for operate, service and maintain. Employees are important for out of main factory operations such as; *electronic data processing *recording, *analyzing, *measuring nonrepetitive activities *work sampling

22 Nonmanufacturing Activities
Increase in indirect factory laborincrease in office work (banks, mail-order houses, hospitals, department stores, supermarkets, government and military)time and motion study principles are need for this field.

23 The General Problem-Solving Process
Methods design is a form of creative problem solving. There are five steps described here are useful in the logical and systematic approach to solving almost any problem 1. Problem definition 2. Analysis of problem 3. Search for possible solutions 4. Evaluation of alternatives Recommendation for action

24 Problem definition Costs are too high. Output must be increased
There is a bottleneck in order filling in the warehouse. ?

25 A case study Problem definition: In a bank system, employees are complaining long working hours. Their motivations and job satisfactions are low. The manager want to do new arrangement. Analysis of problem Search possible solutions Evaluation of alternative solutions

26 Methods design worksheet-problem definition

27 Analysis of Problem

28 Case study Search possible solutions
Evaluation of alternative solutions Multiple shift design Multiple break assignments Compressed workweeks (3, 4, 5 workdays)


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