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Database Systems: Concepts, Design and Applications, 2nd Edition by Shio Kumar Singh

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CHAPTER20

Data Warehousing and Data Mining

20.1 INTRODUCTION

The operational database systems that we discussed in the previous chapters have been traditionally designed to meet mission-critical requirements for online transaction processing and batch processing. These systems attempted to automate the established business processes by leveraging the power of computers to obtain significant improvements in efficiency and speed. However, in today's business environment, efficiency or speed is not the only key for competitiveness.

Today, multinational companies and large organisations have operations in many places within their origin country and other parts of the world. Each place of operation may generate large volume of data. For example, insurance ...

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