CS614 Data Warehousing Graded Discussion Board (GDB)
Total Marks
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5
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Starting Date
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Monday, February 23, 2015
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Closing Date
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Tuesday, February 24, 2015
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Status
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Open
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Question/Description
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GDB Topic:
Various universities are using information management systems
that stores students, administrative and faculty information. The data of
university management information system is available at each university
level and there is a need to develop a data warehouse for the purpose of
analysis and development of decision support environment. For the
above purpose, HEC is planning to develop a data warehouse of universities
information management system. In order to develop the data warehouse; the following
implementation strategies can be used:
1. Top down approach
2. Bottom up approach
Keeping in view the requirements of the data warehouse and
characteristics of the above mentioned approaches which approach you
considers as the best approach that HEC should opt for data warehouse
implementation. Justify your answer with reasons. Your answer must be to the
point and precise.
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Students Having This Subject Must Participate In GDB Discussion.
ReplyDeleteTraditionally, 2 totally different style methodologies, referred to as top-down and bottom-up have competed with one another. within the top-down approach, the look starts from the highest with the idea that resources square measure globally accessible by every subcomponent of the system, as within the centralized case. The specification is then outlined in terms of the worldwide systems state and implies that every individual element ought to be able to retrieve or estimate, with enough accuracy and among an affordable time delay, resources that square measure native to alternative agents of the system.
ReplyDeleteI think top-down methodology is that the best approach that HEC ought to choose information warehouse implementation as a result of it's been recently developed to supply incontrovertibly performant styles relative to what's achieved in classical centralized management theory. This approach has been conjointly with success applied to issues of detector localization, distributed vehicle flow management and distributed police investigation. top-down approaches fulfil the necessities of the info warehouse and characteristics of the on top of mentioned state of affairs. Ideally the designer ought to begin from the definition of associate degree objective that involves international quantities, then devise a centralized optimisation algorithmic rule and at last proceed to the synthesis of the suburbanized (agent-based) answer. the look method consists of 3 steps: modeling, synthesis and analysis/optimization. A prime Down approach is mostly helpful for comes wherever the technology is mature and well understood, furthermore as wherever the business issues that has to be resolved square measure clear and well understood. A Bottom Up approach is beneficial, on the opposite hand, in creating technology assessments and could be a sensible technique for organizations that aren't vanguard technology implementers. This approach is employed once the business objectives that square measure to be met by the info warehouse square measure unclear, or once the present or projected business method are tormented by the info warehouse.