You actually need clever people in Supply Chain, in order to : * implement APS that don't work, or only for a small part of your supply chains * pretend to the CFO that everything is fine, otherwise you'll never get funding for any other IS any more in a near future * rebuild everything is Excel, Access (now Power Query) or in BI so that you can actually make decent decisions. I actually reduced raw Materials inventory coverage from 8 months to 2,5 months only with Excel and re-order point on SAP. Starting with the "limited" Safety Stock Formula mentioned by Nicolas, that I had learned 20 years before * don't screw up too much * (motivate the teams, because you depend on people to compensate for systems screws up) On top you need to educate top management on the importance of Supply Chain and of the stupidity of some metrics * 99% line utilization is NOT a good way to reduce total costs * 100% service levels is NOT achievable, unless you want to go bankrupt * 85% forecasts accuracy does not mean anything... etc... => curious to discover Nicolas' book.
Indeed R/Matlab/Fortran/Julia (and Python) are the popular data science languages. However, , from an enterprise software perspective, the math part of the job is a very small fraction of the challenge. If all the relevant business systems are already in Java, doing the supply chain modeling in Java is not nearly as odd as it looks. I have seen many more data science initiative fails due to "plumbing" issues compared to "modeling" issues. Then, even considering Julia (instead of Java), the point discussed in the episode stands: Julia is exposing to the engineer tons of concerns that have no net positive contribution to the supply chain challenge. Ex: multiple dispatch in Julia, very nice, but it takes a software engineer to master the sort of class of language capabilities. Cheers, Joannes
Thanks guys. Very useful videos for someone who wants to get a practical perspective on optimising supply chains
Insightful content! Keep going guys
You actually need clever people in Supply Chain, in order to :
* implement APS that don't work, or only for a small part of your supply chains
* pretend to the CFO that everything is fine, otherwise you'll never get funding for any other IS any more in a near future
* rebuild everything is Excel, Access (now Power Query) or in BI so that you can actually make decent decisions. I actually reduced raw Materials inventory coverage from 8 months to 2,5 months only with Excel and re-order point on SAP. Starting with the "limited" Safety Stock Formula mentioned by Nicolas, that I had learned 20 years before
* don't screw up too much
* (motivate the teams, because you depend on people to compensate for systems screws up)
On top you need to educate top management on the importance of Supply Chain and of the stupidity of some metrics
* 99% line utilization is NOT a good way to reduce total costs
* 100% service levels is NOT achievable, unless you want to go bankrupt
* 85% forecasts accuracy does not mean anything...
etc...
=> curious to discover Nicolas' book.
@12:05 got to mention R & Julia! Heck, even MATLAB & Fortran justify more of a mention than the likes of Java when discussing supply chain modeling.
Indeed R/Matlab/Fortran/Julia (and Python) are the popular data science languages.
However, , from an enterprise software perspective, the math part of the job is a very small fraction of the challenge. If all the relevant business systems are already in Java, doing the supply chain modeling in Java is not nearly as odd as it looks. I have seen many more data science initiative fails due to "plumbing" issues compared to "modeling" issues.
Then, even considering Julia (instead of Java), the point discussed in the episode stands: Julia is exposing to the engineer tons of concerns that have no net positive contribution to the supply chain challenge. Ex: multiple dispatch in Julia, very nice, but it takes a software engineer to master the sort of class of language capabilities.
Cheers, Joannes
Pls I need a copy of the book
You can buy the book at www.amazon.com/Inventory-Optimization-Simulations-Nicolas-Vandeput/dp/3110673916/ Hope it helps. Best regards, Joannes