The Materials Requirements Planning (MRP) method that is applied in production planning and management has some weaknesses. One of its weaknesses is that the time in MRP method is discrete, and is considered as time period. Hence we are not able to order our requirements at irregular time moments or periods. In this paper, a new form of MRP is introduced that is named Continuous Materials Requi...

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...

The changing business environment in which manufacturers are acting creates the need for more effective production processes planning and control methods that are able to deal with uncertainties inherent in internal processes and external deliveries. The aim of the paper is to introduce the method for production planning and control applicable in conditions of supply chain (SC) able to overcome...

Defined and evaluated are concepts and characteristics of net change, a method that facilitates replanning and provides timely response to chunge in a transaction-oriented system. (MRP) entail an inherent massive data-handling task. Consequently , batch-oriented MRP systems tend to be untimely in their response to change since replanning can be done only periodically at best, probably once a we...

In this article, a conceptual model, called MRP IV, is proposed in order to serve as a reference to develop a new production technology that integrates material planning decisions, production resource capacities and supply chain transport for the purpose of avoiding the suboptimization of these plans which, today, are usually generated sequentially and independently. This article aim is twofold...

For manufacturing SMEs, Manufacturing Resource Planning (MRP II) systems can offer a multitude of benefits, but equally the potential exists to negatively affect the firms. Research that has explicitly focused on the motivations individual firms have for implementation and the challenges that may be encountered is limited. This study provides a review of some commercially available MRP II syste...

Production systems and supply chains are difficult to model at the level of detail required to understand factors affecting the behavior of material flow. This is particularly true when use of centralized planning systems, such as MRP or DRP, is of interest. Therefore a test bed, comprised of a planning module and a simulator module, has been developed. This test bed is designed to be simple, t...