关键词: Web, 层次分析法, 粗集理论, 灰色关联理论, 数据库, 网络

Abstract: Evaluation system structure of tool life is built based on B/S, form database of evaluation system structure and confirm weighted by AHP. Collects data from corporation by internet appending to data, wipes off condition attribute of redundancy and carries through decision-making rule redundancy by applying rough set theory. Data only have condition attribute of needs by redundancy. But it has possession knowledge of origi-nality. Decision-making taxis of tool life is carried through by applying grey theory. Software of tool life is exploit and it is validated by instance.

Key words: AHP, Database, Gray theory, Network, Rough set theory, Web