Papers by Keyword: Incidence Matrix

Abstract: A integrated analysis methodology(IAM) based on incidence matrix is presented in the paper, aiming at the independent and imbalance between maintainability analysis (MA) and maintenance task analysis (MTA) in practical projects. This paper presents correlativity between support resources and maintenance task, support resources and maintainability factors, maintainability and maintenance task to achieve the process oriented integrated analysis based on incidence matrix, which can expose design defects effectively. Besides, the methodology puts forwards the compositive measures for design improvement through screening key problems and common problems from analysis results. A simple case study is used to demonstrate how the methodology is more effective than usual.

Abstract: Existing conceptual design methods mainly focus on component modeling and representation, which makes them insufficient to help in the conceptual design stage. Port ontology, as an approach to formally expressing product design, has been effectively applied to concept description of a product. An incidence matrix support for product conceptual design based on port ontology is given in this paper. It formally represents and organizes product information in both functional ontology and physical domain in a hierarchy. Port compatibilities are used to map and link the two components. This makes it possible to build incidence matrix and decompose it into an independence matrix, and allow designers from different backgrounds with various interests to access the design ontology. A multilevel matrix is constructed to generate principle schemes of products at different levels of abstraction, which facilitates design decision-making through the whole conceptual design stage. A case study is also given to demonstrate the proposed approach.