Rolling Migration Planning for Manufacturing Networks

制造网络的设计是一项具有长远意义的战略性任务。然而，决策者对这样一项规划任务的规模感到不知所措。因此，处理网络设计问题的方法变得至关重要，使企业能够设计并进一步优化其全球制造网络。除了设计制造网络的结构外，为网络的进一步发展规划迁移过程是关键。这两种观点的结合增加了网络设计的潜力：虽然从结构角度来说，要为制造网络开发一个合格的目标结构，但就迁移角度而言，必须找到通向该目标结构的最合适的路径。现有的方法主要集中在这两个角度中的一个。要么开发了网络结构的数学优化方法，要么以发展网络结构的战略方法为目标。这两个角度的综合观点在现有文献中大多没有涉及。另一个重要的方面是大量的影响参数和相互依赖关系，这增加了规划的复杂性。尤其是由外部因素引起的规划不确定性往往被忽视。此外，制造网络也不是从头开始规划的，而是以现有的网络配置为前提的，这些配置是朝着目标网络结构逐渐发展的。因此，对个别移徙步骤的审议必须具有重要意义。目标在于开发一种全球制造网络滚动迁移计划的总体方法。它应该模拟移徙的必要性，通过努力和收益以及协同作用和限制来评估由此产生的移徙步骤，并促进这些移徙步骤的优化顺序。为此，研究项目由七个工作包组成。首先，创建合适的网络模型。然后，在对移徙努力和效益进行量化评估之前，对移徙需求进行建模，并将其归类为协同效应和限制。在此基础上，将制定确定最佳迁移步骤顺序的程序。此外，所有这些要素都被纳入滚动迁移规划的总体方法中。最终，该方法将得到验证。在整个项目中，研究成果都被记录下来并发布。综上所述，本研究项目将有助于与企业战略保持一致的制造网络的经济规划。

The design of manufacturing networks is a strategic task with long-term implications. Yet, decision makers are overwhelmed with the scale of such a planning task. Therefore, methods become essential that deal with network design problems and allow enterprises to design and further optimize their global manufacturing networks. Besides designing the structure of a manufacturing network, planning the migration process for the further development of a network is key. The combination of both perspectives increases the network design potential: while, regarding the structural perspective, an eligible target structure for a manufacturing network is to be developed, the most suitable path, in terms of migration perspective, towards that very target structure has to be found. Existing approaches focus mostly on one of the two perspectives. Either a mathematical optimization approach for a network structure is developed or it is aimed for a strategic approach to develop a network. The integrated view from both perspectives is mostly not covered in existing literature. Another important aspect is the great array of influence parameters and interdependencies which increase the planning complexity. Especially planning uncertainty induced by external factors is often neglected. Furthermore, manufacturing networks are also not planned from scratch but presuppose existing network configurations which are incrementally developed towards the target network structure. The consideration of individual migration steps must therefore gain significance. The goal lies in the development of an overall method for a rolling migration planning of global manufacturing networks. It should model necessities of migration, evaluate resulting migration steps by effort and benefit as well as synergies and restrictions and facilitate an optimized order for those migration steps. For this purpose, the research project is composed of seven work packages. Initially, a suitable network model is created. Then, migration demands are modelled and attributed with synergies and restrictions before migration efforts and benefits have to be quantitatively assessed. On this basis, a procedure for the determination of an optimized migration step order will be developed. Furthermore, all these elements are incorporated into an overall method for rolling migration planning. Ultimately, the method will be validated. Throughout the entire project, the research results are documented and published. In conclusion, this research project should contribute to the economic planning of manufacturing networks aligned with the strategy of the enterprise.