#TITLE_ALTERNATIVE#
Abstract: <br /> <br /> <br /> <br /> <br /> Distributed database design by Top-Down approach is achieved in two phase of process, i.e. fragmentation and allocation. Fragmentation is a process to devide a relation into subrelations. Those subrelations is called fra...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/8099 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Abstract: <br />
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Distributed database design by Top-Down approach is achieved in two phase of process, i.e. fragmentation and allocation. Fragmentation is a process to devide a relation into subrelations. Those subrelations is called fragments. Fragments produced are then allocated to every site in a distributed database system. <br />
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There are two basic teqniques of fragmentation, i.e. vertical fragmentation and horizontal fragmentation. Vertical fragmentation is a process to devide a relation into subrelations based on the attribute of a relation. Vertical fragmentation can be achieved using the BVP (Binary Vertical Partitioning) algorithm. <br />
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Three steps of process must be done if a relation is desired to be fragmented using the BVP algorithm: (1) the process of AAs matrix construction, (2) the process of CAs matrix construction and (3) finds a split point in CA matrix. The process of CAs matrix construction is a process that clusters attributes of a relation based on affinity in AAs matrix. The process of CAs matrix construction of BVP algorithm is an unpractical process. <br />
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This thesis proposes an alternative method of CAs matrix construction that can be used to cluster attribute (replace step 2 of BVP algorithm). <br />
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