研究了数据仓库和数据挖掘技术在石油化工行业的应用，探讨了石化建筑工程的DW预算分析系统的构架及其实现技术，提出了数据仓库的一种数学描述方法，结合先进的信息管理技术与工程管理的实际经验，利用数据挖掘算法建立了分析和优化系统的模型，提出了预算决策
系统的智能解决方案。

The application of data warehouse and data mining technology in petrochemical industry and the framework and implementation of the DW analysis system of budget work in petrochemical construction projects were illustrated and a mathematical model of data warehouse was proposed. Combining advanced technology of the information management and the experience of the project management, an intelligent solution was obtained about a decision making system of the petrochemical engineering budget based on models of analysis and optimization which were set up on the foundation of data mining algorithms.