How to Calculate Garment SAM from Historical Data


This question was asked by an OCS fan. I have replied to her query. I thought to share my answer to this question with you as this is a common query comes from industrial engineers working in readymade garment industry. I have edited little bit the actual mail reply to make it presentable.

Question: Can you help me find a software program that calculates SAMS based on historical data. for example leggings with flatlock, no additional design lines etc.

"You are looking for a solution that can tell you product SAM (operation wise) from historical data. Right?

I have two questions. What do you mean by historical data? Do you have all historical data for operations cycle time/ capacity study data? or are you planning to have something for capturing historical data?

Software is available to establish garment SAM (standard time for garment jobs/operations) which work just opposite way. It estimates operations standard minute (SAM) before you load garments on the machine. The estimated SAM is used in many ways in production planning, cost estimation, performance analysis, method improvement and operator training etc. Read this post to know about available software for estimating garment SAM. 
In case you want a solution that can tell you garment operation SAM based on operators' actual operation cycle time, that can be done by using real time shop floor solutions (RFID technology based systems). I am associated with BlueCherry shop floor control system (formerly Leadtec), an RFID technology based real time production tracking and control system. This software records times for completing each bundle/ single piece with many other benefits.  
Read this article to more about RFID based shop production control system. By installing this kind of real time systems you can capture true operation cycle time. With those actual cycle time data, you can establish standard time by adding allowance and applying rating factors. (Note: you have study operator rating for this)

This way a software system can provide you operation SAM from historical data. I hope my explanation will help you to understand thing related to standard time estimation"

Even factories those are using PMTS software to establish standard time need to analysis historical SAM data time to time to check the difference between given standards and actual time taken by operators. This practice will help an engineer in both ways – to improve accuracy I setting standard time using software and improve method.

Aslo see: How to calculate SAM of a garment?

OCS readers are also invited to discuss further on this topic.


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Online Clothing Study: How to Calculate Garment SAM from Historical Data
How to Calculate Garment SAM from Historical Data
The idea to calculate standard time from historical operation cycle time. Solutions available for estimating SAM.
Online Clothing Study
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