On Modeling and Implementing Shopfloor Control Systems

TL;DRAbstract

One of the key factors that hold shopfloor control (SFC) software evolution back is the exorbitant cost, time, complexity, and inflexibility of developing customized SFC software solutions. The development and maintenance life-cycle of SFC software is characterized by lock-in problems. It is a fact that shopfloor environments constantly are changing, while the technology surrounding and supporting them often is changing faster. To handle these changes, the necessary software evolution has become the bottleneck. In this thesis, a literature survey shows that there exists a uniform view of general requirements on generic structures for shopfloor controllers. This work has adopted these general requirements in the design for a shopfloor control concept named Production Activity Control (PAC++). To gain experience and knowledge about modeling requirements, three pilot cases were defined. The objective in each pilot case is to gain an understanding of the development and implementation phas

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