If you go by the dictionary, the word standard is defined as the following in the popular dictionaries
Oxford defines ‘Standard’ as
a level of quality or attainment:a required or agreed level of quality or attainment:something used as a measure , norm, or model in comparative evaluations:used or accepted as normal or average:
defines ‘Standard’ as Set up and established by authority as a rule for the measure of quantity, weight, extent, value, or quality
The Standards are developed by various organizations. Most Nations have their own standardization bodies. The standards are mainly under two categories. Product Standards and industry Standards.
Product Standards define the minimum requirements for a product to be called as a standard product. These are normally defined by the statutory authorities such as Bureau on Indian Standards (BIS). Each of the product will have its own standard defined and the product is marked.
Industry Standards are based on the requirements of the industry. The most acceptable Standards are developed by ISO (International organization for Standardization). Out of the 18000+ standards developed by ISO, ISO 9000 family is the most widely used. All most all activities are covered by ISO.
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Originally posted 2011-03-19 02:54:00.
While we are implementing lean we come across three mostly used terms for calculating the Time Spent i.e, Takt Time, Lead Time and Cycle time . Often people get confused of these terms and use Takt Time, Lead Time and Cycle time interchangeably. eventhough they are distinct.
These are used to Optimize the workflow and also to calculate on the capacity to meet the customer demand. Little confusion in this will lead to confused production line.
Now let us get to the details of these.
Lead time : The most simple of these words. The clock starts when we have an order from customer and ends with the time the order is delivered to customer. Let us say we have the order on 15-Sep-2018 and and delivered to customer on 20-Sep-2018. In this case, the Lead time if 5 Days.
Cycle time : Cycle time is the time taken for Production of one Unit. In other words its the time taken from Start of Production to Shipment. Let’s Say, we are able to produce 400 units in 100 days, the Cycle time is 100 /400 = 0.25 Days per Unit.
Takt Time : This tells you how much time you can take. It is the rate at which we can Produce to meet the customer demand. In other words, this is the time available with us to produce one unit. Lets say we have a demand of 200 Units from customer and this is to be delivered in 100 Days. In this case, the Takt Time is 100/200 = 0.5 Days Per Unit.
Using these times, we can simply ensure the production is planned to optimize the resources and meeting customer demands.
Originally posted 2019-01-07 00:36:59.