Job Shop Scheduling Articles

Your Job is Late, AGAIN -> Poor On Time Delivery

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Dear Customer, As you know we’ve struggled achieving on time delivery.  Let me assure you that this has not been due to lack of interest, or because we don’t value you, our customer.  It was a systemic problem that we’ve only just recently figured out. The purpose of this letter is NOT to provide you with excuses as to why […]

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Does Lean manufacturing work in job shops and machine shops?

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In short, no, Lean manufacturing and lean scheduling for high mix low volume doesn’t work.  Not for scheduling a custom job shop or machine shop. Why?  Lean manufacturing was developed most notably in Toyota.  In Toyota’s environment lots of the same car are produced for several years until the model changes.  Lean was developed for repetitive manufacturing. (More information on this analysis -> […]

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Leadership for Job Shop Manufacturing Part 2

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This was originally published in May 2012 but has been updated to reflect my current views. By Dr Lisa Lang, Job Shop Manufacturing expert Job Shop Manufacturing – Theory of Constraints LEADERSHIP This article is copyrighted by Science of Business, Inc. 2015 Visit our Re-post guidelines. In Part 1 I covered the Theory of Constraints first Law of Leadership — “Don’t […]

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Leadership for Job Shop Manufacturing

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This article on job shop manufacturing leadership was originally published in 2012 , but was updated to reflect the current data and my current thinking.  This has been one of my most popular and controversial posts ever.  Some (not all) of the feedback I’ve received is below.  Please add yours. Job Shop Manufacturing – Theory of Constraints 2 Laws of Leadership […]

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Job Shop Scheduling Software

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Job Shop Scheduling Software | Machine Shop Scheduling Software I’m like you.  I invested in job shop scheduling software (we used to own a job shop).  Spent hours and hours getting it setup up only to spend more time continually updating the schedule.  Why does it seem that the moment I print the schedule it’s out of date?  And the […]

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16 Job Shop Scheduling Problems Infographic

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By Dr Lisa Lang This article is copyrighted by Science of Business, Inc. 2015 Visit our Re-post guidelines. Back in 2007 I published the 9 Challenges to Scheduling Your Job Shop and Why Your Schedule is Dead on Arrival. That ebook captured some of the biggest problems job shops can face and to scheduling machine shop work, but as you know […]

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Scheduling Job Shops: Flow is KEY!

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By Dr Lisa Lang This article is copyrighted by Science of Business, Inc. 2015 Visit our Re-post guidelines. Job Shop Scheduling – a high mix low volume job shop can be a challenge. The complexities and problems in the job shop environment are numerous, just check out this list. Given the long list of challenges, it would seem almost impossible to improve […]

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Job Shop Scheduling Problems and Challenges

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Job Shop Scheduling – High mix low volume job shops and machine shops can be quite a challenge to schedule.   Why?  Here are just a few of the complex problems and challenges that plague the environment: Bottlenecks or constraints in job shops can move based on the volume and type of work. Work is diverse — typically low volume high […]

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Drum Buffer Rope

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Theory of Constraints Drum Buffer Rope Drum Buffer Rope (DBR) is a scheduling process focused on increasing flow by identifying and leverage the system constraint.  Drum Buffer Rope (DBR) was developed by Eliyahu M. Goldratt (Eli Goldratt), the father of Theory of Constraints.   This article explains what is Drum Buffer Rope and how it works. It’s the application of […]

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Reducing Job Shop Costs versus Increasing Job Shop Throughput

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Reducing Job Shop Costs By Dr Lisa Lang This article is copyrighted by Science of Business, Inc. 2015 Visit our Re-post guidelines. I was just reading an article on CNCReport.com titled “Never Enough Magnetic Mounts”.  The author was calculating how much money you’d save if you invested in some magnetic strips to make finding tools faster and easier.  Here’s an excerpt […]

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