By Yager R.R.

We examine the problem of database mining.An process is advised dependent uppon using fuzzy lingusitic summaries.

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While worldwide demand for oil grows, the supply and demand curve isn’t friendly to traditional car sales. The highly positive growth curve that sport utility vehicles (SUVs) had a few years ago is giving way to the hybrid and green products. Again, your data warehouse gives you the information to make data-based decisions, rather than have to rely on hunches or, at best, bits and pieces of data gathered from various computer systems. ” One of the worst data warehousing mistakes you can make is to try to force your business analysis and reporting needs to fit into an environment that you copied from somewhere else.

Data Quality & Movement Small OLAP cubes (MDB) Multi-tiered data layer and/or relational including operational database data store, data warehouse supreme feeding data warehouse deluxe and lite Federated Query layer along with traditional data stores including structured and unstructured data File transfer with simple business rules to extract, transformation, and load (ETL) tools Extract, transform, and load (ETL) tool with data quality tools for complex rules like house holding Extract, transform, and load (ETL) tools along with federated query middleware 1 to 25 sources 25 to 100 sources Unlimited sources Sources ✓ Database: The database refers to the technology of choice leveraged to manage the data content within a set of target data structures.

3. Determine what contents (types of data) the data warehouse needs to support its functionality. Understand what types of answers your users will seek. 4. Determine, based on the content volume (which is based on the functionality, which in turn is based on the mission), how big you need to make your data warehouse. Realizing That a Data Warehouse (Usually) Has a Historical Perspective In almost all situations, a data warehouse has a historical perspective. Some amount of time lag occurs between the time something happens in one of the data sources (a new record is added or an existing one is modified in a corporate application, for example) and the time that the event’s results are available in the data warehouse.

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