What are difference between SMV and SAM?

SMV stands Standard Minute value. Standard minute value is the time required for a qualified worker working at “Standard environment & method” to perform a given task . SMV is a widely used topic in Industrial Engineering. SMVs are used in almost all manufacturing-oriented industries. SMV is a very familiar term, especially in the garment industry. 

Standard environment means:

• The temperature of the work place shall be comfortable for the body of the operator. There will be no excess heat or cold.
• There will be adequate lighting in the work place. There shall be no low or high light which is harmful to the eyes or makes it difficult to see any object of work.
• There shall be no noise pollution in the work place.
• The operator will have no fear or pressure to speed up the work.
• The workplace will be safe to work.

 Standard method means:

• Do not waste any extra time in work.
• Doing the work by following the correct steps.
• Do not work too slowly or too quickly.

 That is, if someone follows the above points and does a task, then the number of minutes it will take him to do that task is called SMV or Standard Minute Value of that task. 

SAM mean Standard allocated minute. Standard allocated minute how much time is allowed for a certain task to get the done. We can say another way, After adding Allowance to SMV the time allotted for execution of work is called SAM. SAM is additionally called standard time, on the grounds that the recompenses are added to the fundamental time. It is like SMV (Standard Moment Worth) which is utilized to compute the time it takes to create a piece of garments or piece of garments part. The not entirely settled by breaking down the time it makes to finish each stride of the creation cycle, including cutting, sewing, and getting done, and afterward averaging those times to decide the complete time expected to deliver the piece of Garment. The SAM is then utilized as a norm for deciding the quantity of minutes a specialist ought to take to follow through with a particular job or piece of clothing, and is utilized for quotes and creation arranging. It is many times utilized as a benchmark for estimating efficiency and effectiveness in the piece of garments industry.

What is the factor of SMV and SAM?

• Type of fabric
• Type of garment
• Difficulty of the process
• Garment size
• Type of machine
• Type of technology.

Now many software are currently available to find out SMV and SAM. Example: General Sewing Data (GSD), SewEasy, MODSEW, Pro-SMV, Standard Sewing Data (SSD) etc.

Calculate of SAM & SMV by PMTS Software:

Steps of Calculation:

• Step - 01: Select an any Operation
• Step- 02: Study the motions of that process.
• Step - 03: List down all motion sequence
• Steg - 04: Calculate SAM by adding Allowances. Example: 

PMTS- We get from Pre-determine motion time system:

SL No	Code	Description	TMU	Motion
1	AS1H	Aside part with 1 hand	23	G.P.
2	FFLD	Form fold	43	G.P.G.
3	FOOT	Match parts to FOOT	38	P.F.
4	MS1A	Machine sew 1 cm approx greater 1 cm	17	F.F.
5	GPAG	Get part by adjusting grasp	10	G
6	S45LA	Sew 45 cm	154
7	TDCH	Trim-dechain parts with scissors	49	G.P.P.P.
		Total TMU	334

So, We know that, 27.78 TMU= 1 second 

Now, 334/27.78= 12 second

SMV= 12/60

        =0.20 + 30% Allowance

        =0.26

Calculate of SAM & SMV by Time Study

• Step - 01: Select an any Operation. Example: Bk pocket joint
• Step - 02: Take 5 or more cycle time by Stop Watch
• Step- 03: Determine the Basic Time
• SMV= Basic time + Allowance
• Basic Time = Observe time X Performance Rating
• Observe time= Total cycle time/Number of cycle
• Rating= Observe rating x Standard rating/Standard rating
• Step - 04: See below calculate the SAM & SMV by Following Formula

Suppose, cycle time of Back pocket joint is 40 sec, 39 sec, 42 sec, 41 sec, 38 sec, Operator performance rating is 80%. Now find out the SMV & SAM of this process.

Solution: Observe time= 40+39+42+41+38

                                           =200/5

                                               =40 sec

Basic time= Observe time x Performance rating

                 = 40 x 80%

                 = 32 sec

SMV= Basic Time + Allowance (Allowance=Machine 10% & others 10%)

        =32 + 20%

        = 38.40

        =38.40/60

        =0.64 min (Answer)

SAM Formula= SMV + Allowance

SAM Allowance= Machine 10%, Bundle 10% and Personal 10%

Total= 30%

SAM Allowance= SAM Allowance – SMV Allowance

                                = 30% –20%

                                = 10%

SAM Formula= SMV + Allowance

= 0.64 + 10%

= 0.70 (Answer)

Why SMV or SAM need in Garment Industry?

Costing: SMV or SAM are used to determine the cost of labor for a particular garments. Example, 5pkt, chino, cargo pant etc.

Production Planning: SMV or SAM are used to compare the efficiency of different production methods and make monthly production plan and calculate monthly factory capacity.

Target Setup: SMV or SAM are used to setup daily line target.

Efficiency: SMV or SAM are used to calculate daily line & factory efficiency.

Worker Individual Target: SMV or SAM are used to determine individual work hourly target.

CM Calculation: Calculate cost of making.

Pitch Time: Find out fitch time of every particular garments.

Line Balancing: SMV or SAM used to line balancing.

Lead Time: Calculate production lead time of every order.

Calculate Manpower: To calculate manpower required for particular garments.