Standardization
of work is a sensitive area of management activity, so mistakes are very common
to occur. The risk of error is twofold: if the standards are set too low and if
they are set high. In both cases the work efficiency is being lost.
Standardization
of work and determining of standards are carried out through seven steps:
Step 1 The
choice of work.
Step 2 Inform employees that the performance of his work is the
subject of time study.
Step 3 Divide the work into smaller elements.
Step 4 Determine the size of the sample. Sample size is
determined by formula:
Where:
z = number of standard deviations with the corresponding error risk,
s = standard deviation of the
sample,
a = degree of accuracy,
x =
average value of the sample.
Step 5 Measure the time of performing each element of work.
Step 6
Calculate the usual time.
Step 7 Assess
the standard time.
Standard time is the time required by a worker
with standard experience to complete a given task when working at a pace
sustainable for an entire workday under normal working conditions and work
methods.
The time study engineer multiplies observed
time with a factor known as "rating factor" to get the basic time.
This is expressed as a percentage of the efficiency of operator, which
indicates how efficient an operator is in comparison to some of his average
fellow workers. To get the standard time, a proper allowance must be added
consisting the working conditions. Types of allowance are:
1. Machine
allowances.
2. Relaxation
allowance.
3. Interference
allowance.
4. Process
allowance.
5. Contingency
allowance.
6. Special
allowance.
No comments:
Post a Comment