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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:23926
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。
Establishing infrastructure namely DBMS, extraction, replication tools and report writers.
Model that enterprise data from logical structure to physical structure.
Prioritize the business data need and segment the enterprises data model matching to this need.
Determine sources of data from internal system and applications which need to be handled as stated earlier.
Simultaneously, collect the metadata about the data being considered for processing in Data Warehouse.
Model the business data at both logical and physical levels.
Finalize and implement security aspects and release the security code to the end users on the installation of Data warehouse.
To get a better start on the project; it is better to initiate a preparatory project to get everybody in the organization to understand the why and how of Data Warehouse. Following activities are carried out for this purpose:
Obtain necessary management approval to undertake such project.
Initial exploration and education on data warehouse for the key people in the organization, i.e. key decision makers and key end users.
Build a small Data Warehouse pilot: Present the same to the concerned people to justify and convince the need of it. Obtain the approval for building enterprises Data warehouse.
Go for Data warehouse requirement definitions: This essentially means studying existing business strategies and business scenario. Looking for changing needs of strategies, the managers and decisions makers holding key positions in critical business functions should be able to envisage what their business data needs are to cast new strategies.
Having ascertained the business data needs with enterprises wide data access, next step is to go for high level enterprise data model.
Obtain the approval for enterprises wide data model, which will form the basis of designing Data Warehouse. This approval could be obtained by presenting the case for enterprises data model and its benefits.
Prepare a road map to build the Data Warehouse with stages to obtain the benefits as it gets implemented. In this road map, following topics should be dealt with:
Executive summary on business needs of Data Warehouse
Note on business strategy, current and future
Data Warehouse architecture. Explain three layer architecture (Operational Data, Reconciled Data and Derived Data).
Inputs required and implications on existing information system, operational and functional.
Potential areas of benefit and cost estimates considering hardware, software and tools.
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