ONLINE APPAREL STUDY

What is Overall Efficiency, On-Standard Efficiency and Off-Standard Efficiency?

"Efficiency" is a term commonly used in the garment manufacturing industry to describe the abilities and expertise of a sewing operator. A garment factory's capacity is estimated as a result of the efficiency of its operators or the efficiency of its production lines. As a result, one of the most widely used performances measuring tools is efficiency.

Overall Efficiency,On-Standard Efficiency,Off-Standard Efficiency?

We are all familiar with the definition of efficacy. We also understand how to calculate the efficiency of a production line or the efficiency of a single sewing operator. However, we may be unfamiliar with the following terms, which are extremely important.

What is On-Standard Efficiency, Off-Standard Efficiency and Overall Efficiency?
How to calculate On-Standard Efficiency, Off-Standard Efficiency and Overall Efficiency?
What are the differences between On-Standard Efficiency and Overall Efficiency?



The efficiency of workers and the efficiency of the production line are measured in terms of productivity. As a result, special attention should be paid to its efficiency.

Generally, Efficiency Calculation formula is

Efficiency (%) = (Total Produced Minutes / Total Attended Minutes) × 100 

But this formula is to calculate average efficiency. Here all the loss time of operators also included. To make the efficiency more accurate, the On-Standard Efficiency, Off-Standard Efficiency and Overall Efficiency are calculated.



When are the On-Standard Efficiency, Off-Standard Efficiency and Overall Efficiency measured?

A typical day's work of an operator is broken down into the following categories:

Doing Standard Work
Doing Off-Standard Work (doing the tasks which are not familiar to the operator also may be non-value-adding rather than a regular job)
Doing Nothing (Operator sitting idle for lost-time like trim accessories not available, bottleneck from previous operations, power failure, machine breakdown, no feeding/no work etc.)

Standard minutes are produced by operators on the sewing line, whether they are performing an on-standard operation or an off-standard operation. However, downtime occurs when an operator does nothing but sitting idle for some reason is lost time.

It is not the operators' responsibility if they do not get work. Consequently, if you evaluate their performance based on all hours spent in attendance, you will receive an inaccurate picture of their overall performance. Therefore, only labour hours considered to be on-standard are used to calculate efficiency when measuring on-standard efficiency.

Measurement of on-standard efficiency is helpful for analyzing operator skill; however, when it comes to production at the end of the day (or line efficiency), and incentive computation for the line and individual operator, overall efficiency is utilized to determine the eligibility level.

How to calculate on-standard efficiency, off-standard efficiency and overall Efficiency

To measure on-standard efficiency, off-standard efficiency and overall Efficiency we need to collect the following data:
Total hours worked on the On-Standard Work
Total hours worked on the Off-Standard Work
Standard minutes produced while working on the On-Standard Work
Standard minutes produced while working on the Off-Standard Work
Total lost time in hours
In practice, no garment will be made during lost-time hours, hence there will be no produced minute for lost time hours.

On-Standard Efficiency= (Total On-Standard Minute Produced × 100)/(Total On-Standard Hours Worked × 60) %

Off-Standard Efficiency = (Total Off-Standard Minute Produced *100)/(Total Off-Standard Hours Worked × 60) %

Overall Efficiency = [(Standard minutes produced while working on the On-Standard Work
+Standard minutes produced while working on the Off-Standard Work) × 100] / [60 × (Total hours worked on the On-Standard Work + Total hours worked on the Off-Standard Work + Total lost time in hours)]%




Employees' on-standard and overall efficiency will be the same if there is no lost time or non-standard hours are worked.

The overall efficiency will be lower than the normal efficiency if there is lost time.

Unavailability of the appropriate technology for recording lost time data is one of the difficulties in measuring on-standard efficiency. If you use a print format, you can record lost-time data, but the amount of data you can capture will be limited, and not the actual lost-time hours.

Post a Comment

0 Comments