Basically, a bottleneck is the slowest step in a process, the machine having trouble keeping pace. To find a bottleneck, go and have a look at where the inventories pile up and from where the machines are starved from upstream supplies, there is your bottleneck. Well, it’s not always that simple.
In part 1 of this series, I introduced management attention as a constraint. This second post goes on with more reasons why management fail to pay the necessary attention to the factor limiting the whole system’s performance. Unaware or wrong about the constraint Management attention might be on the wrong things because manager are unaware … Continue reading Management attention as a constraint – Part 2/2
A system’s constraint, the limiting factor that is an obstacle to getting more Goal units* from the system, can be pretty difficult to identify (hence the success of my post on the topic: How to identify a constraint?!). *”Goal units” can be money, profit, services to citizens, number of patients treated, free meals served, or whatever … Continue reading Management attention as a constraint – Part 1/2
This is part 5 of a series of posts about identifying the constraint of a system and time for wrapping up and a conclusion (of the series, not the topic!). Newcomers to Theory of Constraints understand quite easily the concept of bottleneck but are frequently puzzled when looking for them in a real-life process. Furthermore, … Continue reading How to identify the constraint of a system? Part 5/5 – The valley of despair
Since the publishing of early books on Theory of Constraints, the world grew more complex and the system’s constraint got more and more elusive. Globalization and extended supply chains give a constraint opportunity to settle literally anywhere in the world and extend its nature. It can be a physical transformation process in a supplier’s facility, … Continue reading How to identify the constraint of a system? Part 4/5 – Check beyond production
A very common question once people get familiar with Theory of Constraints and the notion of bottlenecks and constraints is how to find them in a process. Identifying the constraint is key as the constraint, by its nature, it controls the performance of the whole system. The trouble with examples given in textbooks or case … Continue reading How to identify the constraint of a system? Part 1/5 – The usual suspects
This is probably the greatest frustration for Logical Thinking Process (LTP) fans: why don’t more people get interested in? Why is the Logical Thinking Process so hard to sell? Please understand “sell” with the quotation marks, I mean promote, advertise, grow the community, attract participants to seminars and courses altogether. This post is a reflection … Continue reading Why is the Logical Thinking Process so hard to sell?
January 2014 - January 2017, my blog is now online for 3 years and counts 347 posts. Thanks to all of you my audience is gently growing on this blog, as well as on my Youtube channel and on tweeter. All organic! What is the most read here? According to the stats, Constraint vs. bottleneck … Continue reading My blog’s third birthday
David Poveda is a Colombia-based consultant, Owner and Director of FLOWING Consultoria. David is well-known for his successful implementations of Theory of Constraints (ToC) and Lean-based solutions, and his expertise about Demand Driven MRP (DDMRP). Just before the Logical Thinking Process training in Paris, in June 2016, he paid a visit to our offices and met Bill … Continue reading Bill Dettmer and David Poveda share views about planning
Every once in a while, for nearly 30 years, the question arises: “what’s the next big thing after Lean?”, suggesting that the askers are done with Lean. We write July of 2016 and it seems that everybody is Lean now. Many people have been repeatedly exposed to Lean methods and tools, have been involved in … Continue reading We are all Lean now. What’s next?