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备品备件货物品种多和可供选择供应商多的特点,使得冶金企业对备品备件供应商的管理比大宗原燃料供应商的管理更加复杂.基于粗糙集理论,运用多属性决策方法研究了供应商选择问题.首先,在选择决策指标体系的基础上,采用粗糙集理论分析历史指标数据与供应商选择结果之间的关系,从而确定每个指标的客观权重,再结合主观赋权,得到每个指标的综合权重.其次,基于主、客观综合权重及数据的规范化处理结果,对候选供应商进行综合评价.最后,用案例验证了本方法的可行性和有效性.
Due to the variety of spare parts and many suppliers, the management of spare parts suppliers in metallurgical enterprises is more complicated than the management of bulk raw fuel suppliers.Based on rough set theory, the author studies the suppliers by means of multi-attribute decision making Choice problem.Firstly, on the basis of choosing the decision index system, this paper uses the rough set theory to analyze the relationship between the historical index data and the supplier selection results, so as to determine the objective weight of each index, combined with subjective empowerment, to obtain each The comprehensive weight of the index.Secondly, based on the normalized weight of the principal and the objective and the result of data normalization, the candidate suppliers are evaluated comprehensively.Finally, the feasibility and effectiveness of this method are verified by the case studies.