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基于C/S模式的数据仓库应用系统的研究与开发

【作者】 刘淑杰

【导师】 张晓丽;

【作者基本信息】 大连理工大学 , 机械设计与理论, 2002, 硕士

【摘要】 论文主要对C/S模式的数据仓库应用系统进行了研究。 在深入研究了数据库技术、数据仓库技术和C/S模式数据库应用系统设计开发技术的基础上,本文完成了本钢连铸离线数据仓库应用系统的设计与开发。 本钢连铸离线数据仓库应用系统是典型的C/S模式数据仓库应用系统。其主要功能是将连铸在线控制系统的产品工艺数据离线保存三年以上,并实现对这些历史数据的查询和综合分析。根据系统功能,该系统设计成由数据仓库、ETT实用程序和DQAS三部分组成。这三部分之间彼此独立又相互联系。其中数据仓库主要用来存储和管理离线后的生产工艺数据以供DQAS使用。ETT实用程序实现生产工艺数据从在线控制系统向离线数据仓库中转移,并在数据转移过程中进行必要的数据结构转换。DQAS则用来对数据仓库中的生产工艺数据进行查询和分析。 在完成系统总体方案设计后,分别对其三个组成部分进行了设计开发。为了满足数据仓库的开放性要求并确保DQAS高速运行,数据仓库采用了第三范式与星型结构相结合的形式。为了确保ETT实用程序的健壮性和高效性以及数据仓库中数据的一致性和完整性,在ETT实用程序的设计开发过程中采用了Power Builder具有逻辑限制条件的数据管道技术,并在数据仓库中设置了时间标记表和数字标记表。在DQAS的设计开发中,采用了Power Builder基于视图的数据窗口技术以增强DQAS的独立性。 该系统经三个月运行测试,功能正常,目前已被本钢炼钢厂验收合格。

【Abstract】 The thesis researches the data warehouse application system of C/S mode mainly.On the basis of study of database technology, data warehouse technology and the design and development of database application system, this thesis has completed the design and development of BenXi Steel Corporation Continuous Casting Offline Data Warehouse Application System (abbreviated to CCDWAS).CCDWAS is a typical database application system of C/S mode. Its function is moving the product data of Continuous Casting Online Control System (abbreviated to CCOCS) into offline data warehouse in which the data can be kept for three years and can be queried and analyzed by user. According to the function, the system is divided into three parts, which are data warehouse, ETT utility program and DQAS. Data warehouse store and manage the product data. ETT utility program extracts, transfers and transports the product data from CCOCS into CCDWAS. DQAS can be used to query and analyze the product data in data warehouse.After completing the frame design of CCDWAS, I design its three parts separately. In order to meet the opening request of the data warehouse and guarantee that DQAS can run at a high speed, data warehouse adopts a structure that combines 3NF with star mode. For insuring the robustness and high-efficiency of ETT utility program, pipeline technology with logical condition of Power Builder and time-marker table created in data warehouse are adopted while designing and developing ETT utility program. Data window technology based on viewof Power Builder is used to strengthen the independence of DQAS during the designing of DQAS.After testing of six months,CCDWAS has been confirmed to be qualified already at present.

  • 【分类号】TP311.13
  • 【下载频次】164
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