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Managementsysteme für die Shop-Floor Logistik: Eine Modellbasierte Gestaltungsmethodik
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| Author | Philip Moscoso |
| Abstract |
This thesis describes a model-based methodology for the design of logistic management systems on a shop floor. The methodology comprises a heuristic design procedure and a modeling framework. Together they provide models and principles as well as tools and procedures for this design task. In the face of today's turbulent business environment, the logistic management of the shop floor has become a decisive issue for production companies towards theirsuccess. It determines several factors (e.g. delivery time) that contribute considerably to customer satisfaction. At the same time these factors can bemeasured quite fast and objectively, so over the short-term effects of interventions can be evaluated fairly directly. Until now, the logistic management of the shop floor has been considered primarily as a planning and control task. Thus, the instruments used were generally conceived for systematically anticipating any possible logistical disturbances on the shop floor. Confronted with the practical limits of this aim, the necessity of a new understanding of the shop floor logistics is increasingly becoming a topic in industrial practice and academic research. The envisioned change concerns the tasks and goals as well as the means and instruments of shop floor logistics. Within the realms of this change, firms want to shift from a product/functional view focusing on certain states of production (e.g. utilization) to a relationship/systemic view focusing on certain skills (e.g. agility). Indeed, while design efforts in the past focussed mainly on the actual performance requirements, the long-term development of the shop floor logistics are finding more and more their way into the design targets. It should come as no surprise that this change has led to a general challenge of traditional design approaches. In fact, there is a broad acknowledgement that to improve the ability of planning and control through more powerful technical systems, and consequently, trying to convert the shop floor in an operationally closed system, is not the right path towards a sustainable success. Instead, instruments should be created, which allow an integral logistic management of the shop floor. ... In order to face this development towards an integral logistics management of the shop floor, a methodology for the design of proper management systems is presented. For its specification, design concepts of several different research disciplines (e.g. management cybernetics or organization and work psychology) are considered, and some of their important insights and contributions (e.g. Viable System Model or MTO-approach) are incorporated. Basically, the methodology comprises: * A modeling framework to provide a design picture as holistic as possible, i.e. making the crucial design dimensions more explicit and palpable. On the one hand the chosen set comprises five design dimensions: Management, tasks, processes, structures and resources. On the other hand, two dimensions for evaluating the design efforts are described: A qualitative (skills) and a quantitative (marks) one. * As a result, the framework supports the consideration of the crucial question: What is the design of a logistics management system about? The developed framework allows the identification of the available variables, the options to be studied as well as the requirements and influencing factors within the design, and makes them approachable for an evaluation. In addition, the framework provides several concepts (e.g. viability or integral logistic management) increasingly used in shop floor logistics, with model-based conceptions. * As a complement to the modeling framework, a design procedure is described, which guides the chronological exploration of the framework. The procedure covers four main steps: Analyzing, evaluating, conceptualizing, and implementing. Additionally, the procedure turns to several practically proved modeling tools (e.g. simulation), providing the design methodology with a valuable reservoir of tools. The application of the methodology is illustrated by means of a practical case studyfrom the field of semiconductor assembling. |
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