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Design and Implementation of Multi-dimensional Data Visualization Tool Based on Web

Author: CaoJian
Tutor: FengYuCai
School: Huazhong University of Science and Technology
Course: Computer Software and Theory
Keywords: Online analytical processing multi-dimensional data analysis middleware multi-dimensional data sets pivottable
CLC: TP311.13
Type: Master's thesis
Year: 2009
Downloads: 63
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Online analytical processing which based on multi-dimensional data sets is multi-dimensional data analysis technology of data warehouse system. Online analytical processing server and multi-dimensional data display tool are two important components of online analytical processing system. With the extensive development of Web applications, the portability and the lack of independence of existing multi-dimensional data display tools is increasingly clear. In order to enhance the portability of multi-dimensional data display tool and reduce the coupled degrees between the display tool and online analytical processing server, it is necessary to design and implement a multi-dimensional data display tool based on Web.This thesis has done research on design and implementation technology of Multi-dimensional data display tool, including architecture design, design and implementation of online analytical processing system middleware and multi-dimensional data sets pivottable.Through the research on the architecture of the existing multi-dimensional data display tools, it brings forward the architecture of web-based multi-dimensional data display tool which is divided into model layer, control layer and View layer. The model layer provides multi-dimensional data access service, consisting of the online analytical processing server, database and data warehouse system. The control layer completes the logic of multi-dimensional data sets connection and operation,consisting of the online analytical processing system middleware and application server.The view layer is responsible for web page display of multi-dimensional data set.The online analytical processing system middleware completes connection and query to multi-dimensional data source by realizing XML/A protocol.To support multi-dimensional analysis operations of multi-dimensional data sets,the middleware brings forward a packaging plan for multi-dimensional XML-based format data sets.To complete multi-dimensional analysis opreations,the middleware simplifies and divides standard MDX query statement,and then designs basic elements for constructing MDX query statement.Taking the consistency rule of dimension as guide,the design and implemention of pivottable has been complished by summerizing the functional requirements and features of online analytical processing operations. The pivottable supports online analytical processing operations and displays multi-dimensional information using table format based on two dimensions.

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