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Lead times, work sampling, and Little’s Law
On 1/11/2011, Michael Thelen asked in the NWLEAN forum about “laws of nature” as they related to Lean. This is based on one of my answers. Lead time is a key performance indicator of manufacturing...
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Learning or experience curves
The following is a revision of a posting on NWLEAN in January, 2011 in response to Mike Thelen’s call for “Laws of nature” in manufacturing. Learning curves are often mentioned informally, as in “there...
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Comparative advantage in the allocation of work among machines
Another NWLEAN post in response to Mike Thelen’s query on Laws of Nature, posted on 2/11/2011 On several occasions, I ran into the problem of allocating work among machines of different generations...
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A factory can always be improved
Based on an NWLEAN post entitled: Laws of Nature – Pareto efficiency and Pareto improvements, from 3/3/2011 In manufacturing, Italian economist Vilfredo Pareto is mostly known for the Pareto diagrams...
View ArticleLead times, work sampling, and Little’s Law
On 1/11/2011, Michael Thelen asked in the NWLEAN forum about “laws of nature” as they related to Lean. This is based on one of my answers. Lead time is a key performance indicator of manufacturing...
View ArticleLearning or experience curves
The following is a revision of a posting on NWLEAN in January, 2011 in response to Mike Thelen’s call for “Laws of nature” in manufacturing. Learning curves are often mentioned informally, as in “there...
View ArticleComparative advantage in the allocation of work among machines
Another NWLEAN post in response to Mike Thelen’s query on Laws of Nature, posted on 2/11/2011 On several occasions, I ran into the problem of allocating work among machines of different generations...
View ArticleA factory can always be improved
Based on an NWLEAN post entitled: Laws of Nature – Pareto efficiency and Pareto improvements, from 3/3/2011 In manufacturing, Italian economist Vilfredo Pareto is mostly known for the Pareto diagrams...
View ArticleAverages in Manufacturing Data
The first question we usually ask about lead times, inventory levels, critical dimensions, defective rates, or any other quantity that varies, is what it is "on the average." The second question is how...
View ArticleHow to Pick the Fastest Line at the Supermarket | New York Times [Debunk]
“[…] Choose a single line that leads to several cashiers Not all lines are structured this way, but research has largely shown that this approach, known as a serpentine line, is the fastest. The person...
View ArticleVariability, Randomness, And Uncertainty in Operations
This elaborates on the topics of randomness versus uncertainty that I briefly touched on in a prior post. Always skittish about using dreaded words like “probability” or “randomness,” writers on...
View ArticleSaturation In Manufacturing Versus Service
In Capacity Planning For 1st Responders, we considered the problem of dimensioning a group so that there is at least one member available when needed. Not all service groups, however, are expected to...
View ArticleAcceptance Sampling In The Age Of Low PPM Defectives
Today, some automotive parts manufacturers are able to deliver one million consecutive units without a single defective, and pondering quality management practices appropriate for this level of...
View ArticleLead times, work sampling, and Little’s Law
On 1/11/2011, Michael Thelen asked in the NWLEAN forum about “laws of nature” as they related to Lean. This is based on one of my answers. Lead time is a key performance indicator of manufacturing...
View ArticleLearning or experience curves
The following is a revision of a posting on NWLEAN in January, 2011 in response to Mike Thelen’s call for “Laws of nature” in manufacturing. Learning curves are often mentioned informally, as in “there...
View ArticleComparative advantage in the allocation of work among machines
Another NWLEAN post in response to Mike Thelen’s query on Laws of Nature, posted on 2/11/2011 On several occasions, I ran into the problem of allocating work among machines of different generations...
View ArticleA factory can always be improved
Based on an NWLEAN post entitled: Laws of Nature – Pareto efficiency and Pareto improvements, from 3/3/2011 In manufacturing, Italian economist Vilfredo Pareto is mostly known for the Pareto diagrams...
View ArticleHow to Pick the Fastest Line at the Supermarket | New York Times [Debunk]
“[…] Choose a single line that leads to several cashiers Not all lines are structured this way, but research has largely shown that this approach, known as a serpentine line, is the fastest. The person...
View ArticleVariability, Randomness, And Uncertainty in Operations
This elaborates on the topics of randomness versus uncertainty that I briefly touched on in a prior post. Always skittish about using dreaded words like “probability” or “randomness,” writers on...
View ArticleSaturation In Manufacturing Versus Service
In Capacity Planning For 1st Responders, we considered the problem of dimensioning a group so that there is at least one member available when needed. Not all service groups, however, are expected to...
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