Data warehousing: a central repository for data derived from different organizational sources
The data store is optimized for decision support and not for specific operational functions (reservation processing)
A common format or data model is imposed on heterogeneous data
The data are cleaned and pre-processed
Operational: capturing basic activity (who, what, when, where)
III. Examples of web services
www.asu.edu/spiada/data_admin/pictures/warehouse.jpg
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