《《新编》预先的计划和安排》由会员分享，可在线阅读，更多相关《《新编》预先的计划和安排（72页珍藏版）》请在金锄头文库上搜索。
1、Advanced Planning and Scheduling Is logistics everything A research on the use fulness of advanced planning and scheduling systems Marjolein van Eck BWI paper April 2003 Advanced Planning and Scheduling Is logistics everything A research on the use fulness of advanced planning and scheduling systems
2、 Marjolein van Eck BWI paper April 2003 Vrije Universiteit Amsterdam Faculty of Sciences Mathematics and Computer science departments Paper for Business mathematics and Informatics De Boelelaan 1801a 1081 HV Amsterdam Preface This paper is part of the doctoral programme of the study Business mathema
3、tics and Informatics BWI at the vrije Universiteit Amsterdam This paper is based on a literature research into advanced planning and scheduling This research is subtitled Is logistics everything which refers to a headline in the NRC Handelsblad on the 29th of November 1997 Logistiek is alles Logisti
4、cs is everything An article with the retiring chairman of the EVO the organisation for logistics and transport Since a decade the accent in the logistics sector has moved from inside the factories and warehouses to the outside world The Supply Chain paradigm has lead to new research areas and techno
5、logies in the search for an increased control of the total logistics chain of companies who co operate to produce and sell products One of the most remarkable results of the Supply Chain concept is the increase in the use of formal scientific methods to support the logistical decision making With th
6、is research I hope to have given a critical and objective view on this new development I would like to thank my supervisor Ger Koole for his critical view Marjolein van Eck Amsterdam The Netherlands April 2003 Executive summary Supply chain management SCM is defined as a process for designing develo
7、ping optimising and managing the internal and external components of the supply system including material supply the transformation of material and distribution of finished products or services to customers that is consistent with overall objectives and strategies Spekman 1998 The essence of SCM is
8、a strategic weapon to develop a sustainable competitive advantage by reducing investments without sacrificing customer satisfaction Lee and Billington 1992 Since each level of the supply chain focuses on a compatible set of objectives redundant activities and duplicated efforts can be reduced Spekma
9、n 1998 All companies function as links in chains of entities that produce and distribute products Many companies have viewed their participation in the supply chain from an independent perspective and focused on the maximisation of its own profitability In the traditional view each organisation aims
10、 to maximise its own profit while in the new integrated view each organisation aims to maximise total supply chain success Therefore a supply chain company in the new view must lose its external boundaries Four forms of supply chain integration can be distinguished Physical integration Information i
11、ntegration Management control integration Organisational integration Materials requirements planning MRP and capacity requirement planning CRP systems have been gradually developed towards closed loop systems entitled Manufacturing Resource Planning MRP II which integrate both materials and capacity
12、 requirements Latest Enterprise Resource Planning ERP and Advanced Planning and Scheduling APS systems have improved the integration of materials and capacity planning by use of constraint based planning and optimisation Further many ERP en APS systems make it possible to include supplier and custom
13、er in the planning procedure and thereby optimise a whole supply chain on a real time basis Instead of an ERP system that focuses on each individual link in the chain an APS system is a system that suits like an umbrella over the entire chain thus enabling it to extract real time information from th
14、at chain with which to calculate a feasible schedule resulting in a fast reliable response to the customer APS is a new revolutionary step in enterprise and inter enterprise planning It is revolutionary due to the technology and because APS utilises planning and scheduling techniques that consider a
15、 wide range of constraints to produce an optimised plan Material availability Machine and labour capacity Customer service level requirements due dates Inventory safety stock levels Cost Distribution requirements Sequencing for set up efficiency This paper also discusses the basic functionality of p
16、lanning and scheduling in Advanced Planning and Scheduling systems APS Three basic planning options concurrent planning or unconstrained planning constrained planning and optimisation are analysed The planning functionality is radically improved compared to MRP and MRP II APS is relevant for production organisations Also distribution organisations can benefit from implementing APS for supply chain management The key success factors which are necessary to implement an APS system successfully are
