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论文作者:www.51lunwen.org论文属性:硕士毕业论文 dissertation登出时间:2015-06-05编辑:felicia点击率:24845
论文字数:10413论文编号:org201505262227279977语种:英语 English地区:英国价格:免费论文
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摘要:这是一篇数据仓库系统相关的留学生论文,主要论述了Data Warehouse Systems在全球化经济不断发展的今天对企业和整个社会的重大影响力。
Article 6: A Framework for Developing Enterprise Data Warehouses by Ali H. Murtaza in 1998.
This article was written by Murtaza in the year 1998. According to him, the enterprise data warehousing (EDW) project is generally a huge and time consuming activity. He also elucidated that in many cases; the benefits are not immediately quantifiable and need a leap of faith to rationalize it (Murtaza, 1998). It is suggested that a successful, long-lasting EDW must be elastic, extensible and incorporated. In this article, the author explained that the flexibility is concerned with the impact of new or modified business data requirements on the design of data warehouse. An enterprise data warehousing initiative is one of the most frightening projects that an organization can handle (Murtaza, 1998).
For an executive sponsorship, a typical high level effort is required. The article explains that a clearly defined enterprise strategy with specific goals and objectives must be presented to the stakeholders before entering into any data warehousing journey (Barquin & Ramon, 1997). In general terms, a data warehouse venture differs from technological projects. The goal of the Framework Data Warehousing is to make the activities of design, implementation, and management of data warehousing solutions easier (Barquin & Ramon, 1997). According to the writer, it has been designed to provide an open structural design that can be broadened easily by the customers as well as the third-party businesses by using industry-standard technology. According to Murtaza, the difficulty in quantifying the benefits is one of the problematic issues that are faced by the project manager. Murtaza also suggested that the designed structure of the metadata and data warehouse must be scalable enough to support future changes to meet information needs and analytical requirements (Murtaza, 1998).
Article 7: The Data Mart: A new approach to data warehousing by Pamela Pipe in 1997.
This article “the Data Mart: A new approach to data warehousing” was given by Pamela Pipe in 1997. In a computerized environment, variety of data is available from various systems in the organization but all of the data does not enter into the data warehouse. His article is based on the Data Mart, which means data about data. According to the research of Pipe (1997), W.H. Inmon described that in any information system application, three types of Data Mart are created: design time, control and usage data. While designing a system, a data which describes the use of input data in the application is known as Time Metadata (Immon, 1995). The control Metadata is used by the system to produce Data Warehouse. This data is used to manage and control the process of Data Warehouse creation. For example, data hierarchy is the metadata which is required to 本论文由英语论文网提供整理,提供论文代写,英语论文代写,代写论文,代写英语论文,代写留学生论文,代写英文论文,留学生论文代写相关核心关键词搜索。