منابع مشابه
A Survey on Data Warehouse Evolution
The data warehouse (DW) technology was developed to integrate heterogeneous information sources for analysis purposes. Information sources are more and more autonomous and they often change their content due to perpetual transactions (data changes) and may change their structure due to continual users' requirements evolving (schema changes). Handling properly all type of changes is a must. In f...
متن کاملSchema Evolution for Data Warehouse: A Survey
Data warehouse is considered as the core component of the modern decision support systems. Due to the major support of data warehouse in the daily transaction of an enterprise, the requirements for the design and the implementation of DW are dynamic and subjective. This dynamic nature of the data warehouse may reflect the evolution in the data warehouse. Data warehouse evolution may be focused ...
متن کاملA Survey: Data Warehouse Architecture
Data Warehouse and Data mining are technologies that deliver optimallyvaluable information to ease effective decision making. This survey paper defines architecture of traditional data warehouse and ways in which data warehouse techniques are used to support academic decision making. This paper defines different data warehouse types and techniques used in educational environment to extract, tra...
متن کاملData Warehouse Evolution Framework
In this paper a data warehouse framework that supports data warehouse evolution is presented. The framework is able to handle not only changes in data sources, but also direct changes in a data warehouse schema. In the framework the data warehouse versions are supported in the development environment as well as in reports in the user environment.
متن کاملDetecting Redundancy in Data Warehouse Evolution
A Data Warehouse (DW) can be abstractly seen as a set of materialized views de ned over a set of remote data sources. A DW is intended to satisfy a set of queries. The views materialized in a DW relate to each other in a complex manner, through common subexpressions, in order to guarantee high query performance and low view maintenance cost. DWs are time varying. As time passes new materialized...
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ژورنال
عنوان ژورنال: International Journal of Database Management Systems
سال: 2010
ISSN: 0975-5985
DOI: 10.5121/ijdms.2010.2402