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This was a more advanced version of MRP, and it took into account things like master scheduling, rough-cut capacity planning, capacity requirements planning, and so on. In the year 1983, Oliver Wight developed MRP II (Manufacturing Resource Planning). In the next five years or so the number jumped to a staggering 7000 firms. Soon enough, by as early as 1975 there were as many as 700 companies using this system. Joseph Orlicky was credited with developing the material requirements planning process.īlack and Decker happen to be the first company to have used MRP. It was mainly an answer to the Toyota manufacturing program. The Material Requirements Planning process was initially created so that it could be fed to the Polaris program. It is good to have some background on the concept of material requirements planning and to understand how it came into being, as well as knowing the companies that implemented it right away. The Material Requirements Planning Background So now that you have a brief idea of what MRP is all about, we are going to take it further.