We use data warehouse to provide support information to make decisions. Before uploading data to restructured data warehouse, we need to exchange/ integrate data. This integration process makes sure that data are accurate, within limits and without repetition. Data warehouse updates weekly, monthly or bimonthly according to OLAP system periodicity. So it has stability during certain periods. It reduces the waste resources of traditional RDBMS like record locking, integration check, operation logs and roll back of check points.

ISD provides the service of:

* Get the data from any business process system or data sources;
* Clear and integrate the source data;
* Upload and update database according to plans or rules;
* Provide various forms of data organizing according to decision support requirements;
* Show the result in various forms.

ISD data warehouse technology has been applied to:

* Tobacco Business Management System
* POS System for large scale home appliances chain supermarket

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