A domain-based reference model for the conceptualization of factory loading allocation problems in multi-site manufacturing supply chains [An article from: Technovation]

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Description:
In a networked manufacturing supply chain, allocating proper production volumes to various manufacturing sites is a complex task as it may involve many quantitative and qualitative variables and constraints that span across different geographical boundaries. As many final- and sub-assembly production facilities are networked worldwide, it is necessary to synchronize production volume allocation along the whole horizon of the chain by taking advantages of resources and production strengths of different sites. Such a large scope of the problem requires a holistic and comprehensive framework to conceptualize various issues involved in factory loading allocation. To facilitate the conceptualization of such a factory loading allocation problem (FLAP), this paper adopts the axiomatic design theory and develops a domain-based reference model. A five-domain scheme is introduced to model interdependences among markets, product families, production volumes, final-production and sub-assembly supplies. Such important issues of FLAP as resource utilization, inventory volumes and WIP levels are characterized by specific variables of each domain. The synchronization of volume allocation along the multi-site manufacturing supply chain is achieved through cascading mappings between domains. The reference model suggests itself as a foundation for further exploration of sound FLAP solutions. A case study in a multi-site enterprise is reported to illustrate the feasibility and potential of the proposed reference model.