I’ve just read “Breaking Through to Flow” by Ian Glenday where he describes his ” Glenday Sieve”. It is essentially a data analysis tool which. Definition of Glenday Sieve (GS): A method for identifying high-volume production processes upon which to focus process improvement initiatives. The Glenday. A discussion about applying the Glenday Sieve approach to various aspects of your company and supply chain.

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Making things better through lean thinking and practice. Glenday Sieve Topic Summary: Any experience with it? Send to a Friend.

View similar topics Print this topic. It is essentially a data analysis tool which breaks down your product range into 4 categories to assis with creating levelled production or something similar in the Service Industry. I’ve carried out an initial analysis of our own data and the results I got were almost identical to the examples in the book as the author predicted.

There glebday some impressive ideas and case studies in the book but further research would lead me to believe it is still quite new in the sense that it is not a mainstream lean tool like Kanban, VSM etc. I’d love to hear from anyone who has successfully or unsuccessfully used this tool.


Glenday Sieve (GS)

The difficulty that I have had with his method is the use of just one criterion, in this case production volume, regardless of profitability, demand variability one time order quantity is large compared to another product that is ordered 50 times but the final quantity is the same as the one-time ordermanufacturing routing, etc. His method is a good fit for repetitive assembly but not recommended for non-repetitive high-mix manufacturing.

How then do you sequence the products in order of decreasing “merit” based on both volume and sales? Now you need to trade-off volume against sales, right? And how would his method create a mixed model manufacturing cell or line for high-volume high-value products versus low-volume-high value products with similar, maybe identical, routings? If you are interested in the “JobshopLean Seive”: Hi Simon, As you can see it works! But it’s only a way of choosing the products you’re gona take for your first lean model line.

Lean Forums – Glenday Sieve

So go on with next step: Thanks for your replies, It was interesting that the results were the “same as the book” when sorted by volume but VERY different when sorted by value.


Both sets of results needed to siege tweaked significantly to get a viable Green Stream and to be honest, there actually weren’t any major surprises as promised in the book. An interesting tool to focus on the initial lean model line as Emmanuel described, but certainly not a panacea.

I could also envision doing it by quarter because our business is very seasonal. The glendy can be different for sure. To me the opportunity is to use the rationale that “makes glennday most sense” to solve the problem you are targeting and start trying to level the production based on the sieve. We can tweak it as we learn more.

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