Material management without forecasting: From MRP to demand driven MRP

Topic: Lean and Demand Driven MRP Lean Finds a Friend in Demand Driven MRP (DDMRP)

Focusing material requirements planning (MRP) towards performance

This paper looks at the successes and disappointments of MRP. It studies numerous articles to determine what the key shortcomings of MRP are. Next, it investigates if these failures are correctable, and what the consequences of not correcting these de®ciencies means. This article considers alternatives that have been discussed in the current literature. Last of all this article discusses whethe...

MRP with imprecise demand and uncertain lead time

Taking into account the uncertainty of real data in the planning process is a real challenge for nowadays companies. It is suggested in this communication to take into account the demand uncertainty, but also the uncertainty on the lead times, for deciding which quantities of components should be released, and when. In that purpose, the various situations that may happen are summarized in a gra...

Deep Interactions with MRP

Using multilevel regression and poststratification (MRP), we estimate voter turnout and vote choice within deeply interacted subgroups: subsets of the population that are defined by multiple demographic and geographic characteristics. This article lays out the models and statistical procedures we use, along with the steps required to fit the model for the 2004 and 2008 Presidential elections. T...

Analysis of lumpiness phenomenon in MRP

Occurrence of chaotic behaviors because of fluctuations creation and their intensified transfer along the chain is one of the main causes of inefficiency of Material Requirements Planning (MRP) based supply chains. One of the reasons of the inefficiency is the lumpiness phenomenon. Through this phenomenon, some parts have an irregular production schedule, with nothing produced in some periods a...