The difference between Cycle Time (CT) and Lead Time (LT) is academic, but valuable enough for practitioners, in order to avoid employee's misunderstanding. Here we go: 1. CT is a RANDOM VARIABLE and is associated to the process. CT is subject to variations, because every productive system has variability, some more intense and some other ones less. That's why it is considered random, you have the Average CT and the variance (or standard deviation) of that. The variance (or std dev) can be increased based on downtimes for example. 2. LT is a DECISION VARIABLE and is associated to the decision maker and customer (client). The decision maker needs to know which is the CT and its variance to estimate the LT. With LT on hand and known due date, the decision maker can run the planning process in order to meet demand on due date. In summary, CT needs to be less than or equal LT to meet demand. Analyzing it quickly: If CT is greater than LT, your process is not capable to meet demand in due dates. If CT is equal to LT, your process must have zero variability, otherwise your process will not be capable to meet demand. If your CT is much lower than LT you will have inventory. So, you need to keep control of your process in order to keep low variability under control, to have a consistent CT to estimate LT and run your process at your Takt Time.
I'm glad that my prof shared this video to further clarify the difference between these times 😊 Thank you, for your clear and easy to understand explaination
Great way of explaining how takt/cycle/lead time works. As a special bonus how QUALITY is forgotten so production metrics are met (Did you see all the scrap that was generated?). I think it is always good to add some extra time to ensure quality. This way PRODUCTION is not pressured to meet takt/cycle/lead metrics and forget about QUALITY. I am a software engineer, and I think this is an excellent video don't get me wrong. But Quality should also not be forgotten, please add some extra time to meet customer demands and quality.
Bang on the money Hector Andrade! the cutting, and especially the glueing process! stuck here there and everywhere!! not in a specified place! customer returns!!!!!! in a TIM WOOD enviroment? D for defects!!!...............
I searched quite long to find a video which explains this topic easy and understandable, here we are and i thank you for making it! Go on and use this talent to make more...
Hi Chris, I would consider waiting for a part the lead time for that part. You are the customer of that company, and they then have to calculate their own takt time to satisfy your demands. Now if the part is coming from your own company, and you are waiting on another department, then it is built into your overall lead time (raw materials into your plant, finished product out). If your company is very large, you may end up calculating lead time for individual parts and running a pull system, letting each department ensure their lead time and cycle time stays in sync with your finished product assembly pace- which should be pacing to meet your customer's demand.
Wow! The hands on display of the workers doing the task is helpful because I am tactile learner so I need to see the actual work to understand the information I am learning or do it myself. I am learning cycle time in my University class Operations Management. Thank you for posting. :)
To improve profitability, that is to increase production with same or less cost, simply have the circle marker employee draw one circle, pass it on to the cutter employee, who then stack 2 sheets of paper (even more, depending on the quality of the scissor), then cuts these 2 pieces of paper at a time, therefore producing 2 circles at a time. You figure out the rest...
What a great video! Taking a course in Global Supply Chain Management and your explanation has helped a lot! Love the example and drawings; very clear :)
I still have a doubt about tack time is a measure of excellence in any company. But it doesn’t mean that it is happening. It is a measure of comparison to what is really going on in lead time meaning if the process is achieving the goal of meeting the customer demands. And then the cycle time is what is really going on the process. After that you use the measure of comparison or tack time to get the results of each process in the company and the result is how to map slower process and improve them. Is that? Sorry for my English, I’ve been speaking german often here in the company and besides that I live in Brazil and I’m Italian so unfortunately the most important business language is as it was one year ago. Thank you for the video and it helps a lot. But still I really need to know if I understand correctly.
Thanks for an illustrative video. VSM you showed was showing 1 hour of inventory time between stations, which was a bit confusing to me. Can you please explain!
Hi. In the balance of a production line, the workstations are changed (in the video is an example between times 8:05 to 8:20). I did not find any research article to bring this balance. You have some article engineering support to put it in my thesis. If possible, I will be very grateful.
[Hope to get reply] Great video! Why when calculate the takt time use 7.5hours and not putting 3 operativers into account? For a bigger assembly company shall we calculate available time by considering of head count or not?
Great question. Takt time is calculated as the demand from your company for your customer. So, how often does the company need to produce one item for the customer. You may be looking for the planned cycle time. If you have 3 assembly stations producing for the customer, you may want to calculate the planned cycle time for each to meet your customer's demand (takt). So, in that case, you might calculate takt x 3 to understand the demand on each assembly station. Further, you might want to build in a safety margin for change overs, or things of that nature, so you run a little faster than the demand. That would end up being your planned cycle time at the assembly station level.
How to calculate DISTANCE travelled by component when "takt time" of component and conveyor speed is given.? Speed of conveyor = 8 meter/min (Stop and Go type Conveyor) Takt Time of component = 50 seconds Distance travelled by component in Takt Time or Pitch of component = 2438.4 meter How much distance would be travelled by component in 10 minutes.. Please explain your answer also, so that i can learn the formula for similar problems
Can you tell me if I might be able to edit/use this video? No offense, but I would like to cut it down and fast forward through some parts - it is very useful but for my purpose/intention I would like a short version (I don't plan on monetizing, and I would provide you with the result if you would like to do so). Please let me know if this would be possible. Thanks
Hi, is the time it takes to receive a "part" considered lead or cycle time? For instance, If I make pies, and I have to wait on one of the ingredients of the pie before I can start, where does that fall? These definitions of cycle and lead time make me believe all of the "ingredients" are already ready.What if they aren't and I have to wait on delivery of an ingredient?
You reached one of the most important goals in this video: KEEP IT SIMPLE!
Great job!
The difference between Cycle Time (CT) and Lead Time (LT) is academic, but valuable enough for practitioners, in order to avoid employee's misunderstanding. Here we go:
1. CT is a RANDOM VARIABLE and is associated to the process. CT is subject to variations, because every productive system has variability, some more intense and some other ones less. That's why it is considered random, you have the Average CT and the variance (or standard deviation) of that. The variance (or std dev) can be increased based on downtimes for example.
2. LT is a DECISION VARIABLE and is associated to the decision maker and customer (client). The decision maker needs to know which is the CT and its variance to estimate the LT. With LT on hand and known due date, the decision maker can run the planning process in order to meet demand on due date.
In summary, CT needs to be less than or equal LT to meet demand.
Analyzing it quickly: If CT is greater than LT, your process is not capable to meet demand in due dates. If CT is equal to LT, your process must have zero variability, otherwise your process will not be capable to meet demand. If your CT is much lower than LT you will have inventory.
So, you need to keep control of your process in order to keep low variability under control, to have a consistent CT to estimate LT and run your process at your Takt Time.
Hi Rafael Wollmann
Good explanation
Right on the money. Great explanation.
4
This is an example of "how to make simple concepts more complex".
Thanks for sharing
I'm glad that my prof shared this video to further clarify the difference between these times 😊 Thank you, for your clear and easy to understand explaination
Great way of explaining how takt/cycle/lead time works. As a special bonus how QUALITY is forgotten so production metrics are met (Did you see all the scrap that was generated?). I think it is always good to add some extra time to ensure quality. This way PRODUCTION is not pressured to meet takt/cycle/lead metrics and forget about QUALITY. I am a software engineer, and I think this is an excellent video don't get me wrong. But Quality should also not be forgotten, please add some extra time to meet customer demands and quality.
Bang on the money Hector Andrade! the cutting, and especially the glueing process! stuck here there and everywhere!! not in a specified place! customer returns!!!!!! in a TIM WOOD enviroment? D for defects!!!...............
We have a global metric called OEE
I searched quite long to find a video which explains this topic easy and understandable, here we are and i thank you for making it!
Go on and use this talent to make more...
I couldn't have gone without saying thanks for the great explanation.
I was able to comprehend this with no confusion-thank you and great video!
Thank you for the excellent video! Please make more! They are very useful
EXCELLENT VIDEO.....!!!!!!..THANKS FOR THE EFFORTS
Great Video! I hope you don't mind but would like to add on Down time. Downtime is when production is interrupted.
I love teaching inspiring IE's.
Great vedio
AMAZING VIDEO! So clear and well explained. Thank you!
Thank you for this video. Easy to understand. !!
Great way of explaning such a complicated topic..
This is an excellent video. Simple, to the point with clear visuals supporting it.
Easy for newbie to understand. thanks for such good and simple explanation.
Clear and easy to understood. Great job!
Hi Chris, I would consider waiting for a part the lead time for that part. You are the customer of that company, and they then have to calculate their own takt time to satisfy your demands. Now if the part is coming from your own company, and you are waiting on another department, then it is built into your overall lead time (raw materials into your plant, finished product out). If your company is very large, you may end up calculating lead time for individual parts and running a pull system, letting each department ensure their lead time and cycle time stays in sync with your finished product assembly pace- which should be pacing to meet your customer's demand.
Excellent explanation, excellent examples, very good video.
Amazing!! simple and to the point, Thanks..
excellent video, thank you for the visual analogues
A simple and informative video...Thank you...
Sad to see that you haven't continued...
Wow!!! More videos like that please.
Great explanation! The best I´ve found. Thanks
Wow! The hands on display of the workers doing the task is helpful because I am tactile learner so I need to see the actual work to understand the information I am learning or do it myself. I am learning cycle time in my University class Operations Management. Thank you for posting. :)
I like your teaching style as well as the imperial example you provided. It is really helpful...
Thank you
Excellent video! Explained in such a way that everyone can easily understand these concepts.
Very well explained. Crisp and succinct 🙌🏻
Thanks a lot. This video is crystal clear to understand these terms.
Great video - I'm studying toward CPIM and this has helped a lot (sometimes APICS can over complicate!)
Leo Johnson , CPIM Completed?
True
Now I understand! Thank you
very technical and understandable video, thanks
great video - enjoyed the simplicity & your explanations thereof. thank you.
Well explained!
Excelente video, Thank you for teaching.
great video, thank you very much and greetings from germany.
Thanks for explaining with practical examples.
hello, thanks, great job! if you add 1morr worker in step two, you reduce cycle time, but the first unit will be late by 1.5 secs. Agree?
Great video. Its good to see the explanation as well as examples with different examples.
Thanks sir from morocco
Well explained 🎉
Very helpful video! Well explained! THANK YOU!!!! :-)
Outstanding explanation and illustration.
Amazing Explanation... good video .. Thanks
wonderfully explained...great job...thanks
Excellent teaching 👌👌👌
Thanks for your perfect explanation
Superb....thanks
To improve profitability, that is to increase production with same or less cost, simply have the circle marker employee draw one circle, pass it on to the cutter employee, who then stack 2 sheets of paper (even more, depending on the quality of the scissor), then cuts these 2 pieces of paper at a time, therefore producing 2 circles at a time. You figure out the rest...
Great video ! !!"thank you very much, you deserve the success
Great vid very easy to understand
Very good video
2:27 Lead time
bless ur soul
Thanks a lot for this valuable video. it is really helpful and interesting.
Great video, Im going to try an implement your formula in my business
Well done! Nice change from the powerpoint presentations I normally see for this!
nice video! I learned a lot.. Thank youuu
Good example on VSM & its concept
Excellent job!
very good explanation, with examples
Great video. Very Good explanation
Great video! thanks.
very well explained., thanks
Grazie, great video and explanations.
Love the video thank you very much!
Great, 😍
I liked your explanation to teach vsm
What a great video! Taking a course in Global Supply Chain Management and your explanation has helped a lot! Love the example and drawings; very clear :)
Great explanation!...thank you!
easy to understand. great video :)
How someone could give a DİSLİKE to this video??
By the way thank you for your amazing video, we want more videos.
Armagic Ap very easy if you working in realy factory
Great job!
I still have a doubt about tack time is a measure of excellence in any company. But it doesn’t mean that it is happening. It is a measure of comparison to what is really going on in lead time meaning if the process is achieving the goal of meeting the customer demands. And then the cycle time is what is really going on the process. After that you use the measure of comparison or tack time to get the results of each process in the company and the result is how to map slower process and improve them. Is that? Sorry for my English, I’ve been speaking german often here in the company and besides that I live in Brazil and I’m Italian so unfortunately the most important business language is as it was one year ago. Thank you for the video and it helps a lot. But still I really need to know if I understand correctly.
thank you sire for your efforts !
Thanks for an illustrative video. VSM you showed was showing 1 hour of inventory time between stations, which was a bit confusing to me. Can you please explain!
Great video!
GREAT JOB
Excellent !!!
Super explaination
How do I buy one of these circles adhered to paper?
Good job, good info.
really great job! thanks a lot
the 2nd green circle have to wait for the other 2 colors to be completed prior processing green again.
Therefore total leadtime is 63 secs.
the colors do not carry any significance. you just want to put out circles.
That's a good explanation.
There is a good related SW. TIMSIM
Hi.
In the balance of a production line, the workstations are changed (in the video is an example between times 8:05 to 8:20). I did not find any research article to bring this balance. You have some article engineering support to put it in my thesis. If possible, I will be very grateful.
Fine. The absolute question is where is poka yoka in case of two operations done for one operator
Good job!
great job!
Yes.
Under what management specialization/discipline this subject being thought.
Excellent
thank you
[Hope to get reply] Great video! Why when calculate the takt time use 7.5hours and not putting 3 operativers into account? For a bigger assembly company shall we calculate available time by considering of head count or not?
Great question. Takt time is calculated as the demand from your company for your customer. So, how often does the company need to produce one item for the customer. You may be looking for the planned cycle time. If you have 3 assembly stations producing for the customer, you may want to calculate the planned cycle time for each to meet your customer's demand (takt). So, in that case, you might calculate takt x 3 to understand the demand on each assembly station. Further, you might want to build in a safety margin for change overs, or things of that nature, so you run a little faster than the demand. That would end up being your planned cycle time at the assembly station level.
@@opsexcellence3435 Thank you so much!
How to calculate DISTANCE travelled by component when "takt time" of component and conveyor speed is given.?
Speed of conveyor = 8 meter/min (Stop and Go type Conveyor) Takt Time of component = 50 seconds Distance travelled by component in Takt Time or Pitch of component = 2438.4 meter How much distance would be travelled by component in 10 minutes.. Please explain your answer also, so that i can learn the formula for similar problems
Can you tell me if I might be able to edit/use this video? No offense, but I would like to cut it down and fast forward through some parts - it is very useful but for my purpose/intention I would like a short version (I don't plan on monetizing, and I would provide you with the result if you would like to do so). Please let me know if this would be possible. Thanks
Laura, feel free to use this as you wish.
@@opsexcellence3435 Thank you so much!
good stuff.
Hi, is the time it takes to receive a "part" considered lead or cycle time? For instance, If I make pies, and I have to wait on one of the ingredients of the pie before I can start, where does that fall? These definitions of cycle and lead time make me believe all of the "ingredients" are already ready.What if they aren't and I have to wait on delivery of an ingredient?
Super video
More videos!
Awesome