Product scheme multi-index evaluation method considering order relation analysis

Abstract

The invention discloses a product scheme multi-index evaluation method considering order relation analysis. The method comprises the following steps: firstly, collecting a data source, establishing a traceable relationship between demands of a demand model, and controllably transmitting the demands; carrying out functional decomposition on the demand model until multifunctional indexes which can be used for scheme design by designers are obtained; According to the invention, a multi-index weight evaluation design scheme is adopted, an index evaluation matrix is established, normalization processing is carried out to eliminate non-university, an order relation analysis method is adopted to solve index weights, and a comprehensive evaluation value of each scheme is calculated. According to the method, innovative demand modeling and analysis specifications can be formed in product research and development, scheme evaluation can be simply and quickly carried out in the initial stage of product scheme design, and many practical problems which cannot be evaluated from the technical level can be conveniently solved.

Description

technical field [0001] The invention belongs to the technical field of product scheme design, and relates to a product scheme multi-index evaluation method considering sequence relationship analysis. Background technique [0002] Domestic enterprises, especially physical enterprises, have increasingly large-scale and complex products. In the process of product development, there are often two situations. One is that it is difficult to obtain requirements in the process of new product development; the other is that the development of enterprise products often skips requirements due to mature technology, good program inheritance, and high degree of module reuse. Analysis starts from the scheme design stage, and the designer directly selects the scheme. In addition, the acquisition of requirements is often proposed by enterprise personnel to guide customers based on their existing experience. [0003] Most enterprises do not pay much attention to the tasks in the requirements...

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Problems solved by technology

[0004] In short, the current common problems include but are not limited to the following situations: 1) The requirements analysis stage is skipped in the complex product development process of enterprises, or it is difficult to establish a standardized process for the requirements acquisition and analysis stages

2) In the traditional demand analysis stage, there is no concept of model, no design software, enterprise personnel rely on documents to benchmark previous products, and even rely on experienced designers to make independent decisions

3) The traditional user needs analysis work is mainly through meetings and communication with users. The needs are put forward in the document or the user through the contract. During the transmission process, there will be misunderstanding or lack of information, which leads to the inadequacy of the requirements analysis stage. cause subsequent design iterations

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