Browsing by Author "Cochrane, Sean"
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Item Open Access An engineering design knowledge reuse methodology using process modelling(Springer, 2007-05) Baxter, David; Gao, James X.; Case, Keith; Harding, Jenny; Young, Bob; Cochrane, Sean; Dani, ShilpaThis paper describes an approach for reusing engineering design knowledge. Many previous design knowledge reuse systems focus exclusively on geometrical data, which is often not applicable in early design stages. The proposed methodology provides an integrated design knowledge reuse framework, bringing together elements of best practice reuse, design rationale capture and knowledge-based support in a single coherent framework. Best practices are reused through the process model. Rationale is supported by product information, which is retrieved through links to design process tasks. Knowledge-based methods are supported by a common design data model, which serves as a single source of design data to support the design process. By using the design process as the basis for knowledge structuring and retrieval, it serves the dual purpose of design process capture and knowledge reuse: capturing and formalising the rationale that underpins the design process, and providing a framework through which design knowledge can be stored, retrieved and applied. The methodology has been tested with an industrial sponsor producing high vacuum pumps for the semiconductor industry.Item Open Access A framework to integrate design knowledge reuse and requirements management in engineering design(Elsevier Science B.V., Amsterdam., 2008-08-13T00:00:00Z) Baxter, David; Gao, James X.; Case, K.; Harding, J.; Young, R.; Cochrane, Sean; Dani, S.This paper presents a framework to integrate requirements management and design knowledge reuse. The research approach begins with a literature review in design reuse and requirements management to identify appropriate methods within each domain. A framework is proposed based on the identified requirements. The framework is then demonstrated using a case study example: vacuum pump design. Requirements are presented as a component of the integrated design knowledge framework. The proposed framework enables the application of requirements management as a dynamic process, including capture, analysis and recording of requirements. It takes account of the evolving requirements and the dynamic nature of the interaction between requirements and product structure through the various stages of product development. (C) 2007 Elsevier Ltd. All rights reserved.Item Open Access Manufacturing knowledge verification in design support systems(Taylor & Francis, 2009-12-01T00:00:00Z) Cochrane, Sean; Young, R.; Case, K.; Harding, J.; Gao, James X.; Dani, S.; Baxter, DavidThis paper identifies the need for a verification methodology for manufacturing knowledge in design support systems; and proposes a suitable methodology based on the concept of ontological commitment and the PSL ontology (ISO/CD18629). The use of the verification procedures within an overall system development methodology is examined, and an understanding of how various categories of manufacturing knowledge (typical to design support systems) map onto the PSL ontology is developed. This work is also supported by case study material from industrial situations, including: the casting and machining of metallic components. The PSL ontology was found to support the verification of most categories of manufacturing knowledge, and was shown to be particularly suited to process planning representations. Additional concepts and verification procedures were however needed to verify relationships between products and manufacturing processes. Suitable representational concepts and verification procedures were therefore developed, and integrated into the proposed knowledge verification methodology.