Download or read book impact of system parameters and scheduling policies on system performance in material requirements planning systems written by candace arai yano, robert c carlson and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AN ANALYSIS OF SCHEDULING POLICIES IN MULTIECHELON PRODUCTION SYSTEMS written by Robert C. Carlson and published by . This book was released on 1985 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Operations Management written by American Production and Inventory Control Society and published by . This book was released on 1993 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Planning Stability in Material Requirements Planning Systems written by Gerald Heisig and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: In logistics systems, the issue of planning stability has attracted increased attention and interest in recent years. This is mainly due to an increasing integration of planning systems both within and across companies in supply chain management. The propagation of adjustments in planning systems first acquired wide attention when MRP systems were employed as standard planning tools for material coordination. Within a rolling horizon framework the MRP application produced considerable planning instability which origins from uncertainties in the planner's exogenous environment as well as from endogenous sources. This book presents an analytical investigation that gives deep insight into the influence of different kind of inventory control rules on the stability of material planning systems under stochastic demand in a rolling horizon environment.
Download or read book Comparing Dynamic Risk based Scheduling Methods with MRP Via Simulation written by Li Sun and published by . This book was released on 2008 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Material Requirements Planning (MRP) is one of the earliest production scheduling approaches that utilizes computers. MRP is still regarded as one of the most widely used systems for production scheduling. Even though MRP has made contributions, there are some fundamental problems (i.e. the assumption of infinite capacity and fixed lead times) which make the MRP system vulnerable to effects of uncertainty. To overcome this fundamental flaw, there was a trend towards the development of detailed finite-capacity scheduling systems (i.e. MRP II, ERP, and APO). All these MRP-based systems still ignore variability and randomness and are inherently push systems. Instead of creating a detailed schedule based on forecast, Factory Physics Inc. developed Dynamic Risk-Based Scheduling (DRS), which creates a set of policy parameters (e.g. WIP level, lot sizes, reorder point, and reorder quantity) that work for a range of situations to calculate the production schedule. This thesis compares the key performance measures of DRS and MRP-based scheduling systems. We begin with a single-machine problem and develop simulation models for varying levels of uncertainty in forecast demand (i.e. base demand scenario, under-estimated scenario and over-estimated scenario) and two levels of variability in the system (i.e. moderate variability and no variability). Then the experiment is extended to multiple-machine problems. We also introduce more constraints into the DRS and MRP models to improve their performance. We also test the performance of MRP models for different planning horizons. We find that the DRS strategy is more robust to forecast error than MRP-based strategies. DRS also usually obtains better performance than MRP-based models in terms of higher fill rate and lower inventory.
Download or read book INTERACTION BETWEEN FREQUENCY OF RESCHEDUELING AND THE ROLE OF SAFETY STOCK IN MATERIAL REQUIREMENTS PLANNING SYSTEMS written by Candace Arai Yano and published by . This book was released on 1986 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS MANUFACTURING SYSTEMS STRATEGY DESIGN written by and published by . This book was released on 1987 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impact of Scheduling Policies on Control System Performance written by H. Schiøler and published by . This book was released on 2003 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1971 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Logistics and Supply Chain Management written by and published by Allied Publishers. This book was released on 2001 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Material Requirement Planning System written by R. R. K. Sharma and published by Vitasta Publishing Pvt.Limited. This book was released on 2008 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book seeks to give better solutions to managers managing MRP systems in manufacturing organizations. It introduces the concept of multi-pass heuristics in MRP context and shows that in variety of conditions of the shop floor (such as high and low variations in machine utilisation) these (multi-pass given in this book) can be applied to give better performance on the criterion of total aggregate (or units) lateness with insignificant rise in total costs The author explains a heuristic that modifies the holding cost (of items/assemblies that have higher difference of actual and the theoretical holding costs) and empirically shows that this is better than the heuristic that modified the lead time (of items/assemblies that have higher difference of actual and the theoretical holding costs). The book also talks about a series of heuristics that seek to attain co-ordinated arrival of assemblies at assembly centers with encouraging results
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the National Bureau of Standards 1972 Catalog written by United States. National Bureau of Standards and published by . This book was released on 1973 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1972 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ESC 89 written by David J. Murray-Smith and published by . This book was released on 1989 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1977 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
