II. Literature Survey

Much has been said and written about BI systems. To begin the research, study begins with collecting information from periodicals, journals, and reports. BI systems are used almost in all the sectors of industry for different purposes like reporting, analysis, and decision making. This research concentrate specifically on its applications for the decision making process. This section provides information from several articles that I believe are relevant to this area.

Data warehouses and data marts first appeared to provide a centralized system for accessing data and making tactical decisions. Such systems were considered as to fall under the classification of BI. The main goal of a business intelligence system is to support the decision making process. A

BI system can be defined as a process of turning data first into information and then into knowledge.

There are several types of BI systems such as data warehouse and ERP currently used in organizations for high performance data management and data analysis. Though BI systems have removed the decentralization of data and progressed in managing information, an attempt has not been made to make the information available efficiently.