What is the meaning of SMV in Work Study?

In this post, the term SMV is explained. The formula used to calculate SMV is also shown based on various concepts.

In work-study SMV stands for Standard Minute Value. 

SMV is the standard time allowed to an operator (worker) to complete a task. See the ILO definition of standard minute.

Definition of SMV

SAM and SMV are used interchangeably. Some experts defines SMV in different ways. Like - SMV as cost per minute (monitory term) Or SMV is used to express individual operations's SAM and SAM is used to express complete product SAM.

Read the difference between SAM and SMV to know the different school of thoughts on these two terms.

Where most industrial engineers in India use the term SAM, the GSD system use SMV in place of SAM.

SMV Calculation Formula

Case#1: When you use SMV as SAM, following formula can be used. First SAM is calculated for individual operations. Once you have SAM of all operations of a garment, sum up individual operation SAM to calculate garment SAM.

Standard Allowed Minute = (Basic minute + Bundle allowances + machine and personal fatigue allowances).
Where, Basic Minute = Cycle time * Performance Rating

For more details about SAM calculation method and example, read How to calculate garment? Different terms related to standard time explained in the following links.

Case#2: On the other hand when you use SMV as monitory term, use this formula.

SMV = SAM * Cost per minute ($ or INR)
Example: Lets say SAM of an operation is 1.2 minutes and labour cost per minutes is INR 0.8. SMV for this operation would be 1.2 * 0.8 =INR  0.96

Case#3: When you use SMV as the extension of SAM, I mean SAM is the result of SMV plus allowances. Use this formula
Share your thought on SAM and SMV.

Prasanta Sarkar

Prasanta Sarkar is a textile engineer and a postgraduate in fashion technology from NIFT, New Delhi, India. He has authored 6 books in the field of garment manufacturing technology, garment business setup, and industrial engineering. He loves writing how-to guide articles in the fashion industry niche. He has been working in the apparel manufacturing industry since 2006. He has visited garment factories in many countries and implemented process improvement projects in numerous garment units in different continents including Asia, Europe, and South Africa. He is the founder and editor of the Online Clothing Study Blog.

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