SMV & SAM is the very important term for garments industry. It is lit bit confusion but SMV & SAM are different things. Time is always valuable resource & important operations in apparel sector. It is involve with cost calculate of a garments. It is very crucial point trying to discover different methods to save this valuable time. The idea always is to find a fair time for each task to ensure a fair day’s wage for a fair day’s work. According to save time and money, it is extremely important to first measure it. Hope, you are clear after this article.
Standard Minute Value or SMV
In garments industry SMV means “standard Minute Value” also known as standard time is the time that is allocated to an operation based on the motion study of the operation. It is the time a qualified operator takes for the operation. It is the standard or the best procedure & at the standard performance for each tasks.
How to calculate SMV:
- Select synthetic data to be used. For example motion data as defined in General Sewing Data (GSD) or Predetermined Time Standard (PTS) codes or after thorough research.• Select the operation to be studied.• Observe the operation as a series of movements• Refer to the synthetic data for determining the Time Measurement Unit (TMU) values for all of the observed movements.• Convert TMU value to minutes.
We can assume that in the following
The TMU for an operation studied is 500 TMU.
Convert this into minutes (1 TMU = 0.0006 min).
The SMV for the operation = 0.30 min (500 TMU x 0.0006 min)
Standard Allowed Minute or SAM
In garments industry SAM means “Standard allowed minute”. It is the mean how much time is allowed for a certain task to get done. SAM gives the operation’s allowed time, after adding in allowances like bundle allowance, machine allowance and personal allowance to the SMV value obtained for the operation. This SAM is at 100% efficiency and it needs to be further corrected with expected efficiency for target setting.
- SAM = SMV + Allowance %
We can assume that in the following
The TMU for an operation studied is 500 TMU.
Convert this into minutes (1 TMU = 0.0006 min).
The SMV for the operation = 0.30 min (500 TMU x 0.0006 min)
The SMV of the operation was 0.30 minutes.
Assume the bundle allowance = 10%, which is=10% of 0.27= 0.03 min
Machine and personal allowance = 20%, which is= 20% of 0.27= 0.06 min
Adding the allowances to basic time we get, SAM = 0.30+ 0.03 + 0.06 =0.39 min
Md.Mahbub-Ul Islam
RMG Consultant & Researcher
mahbub.islam54@gmail.com
