A company relies on various systems to support its managerial levels. These systems encompass transaction processing systems, management information systems, decision support systems, and dedicated business intelligence systems.

The purpose of these information systems is to ensure accurate and timely information is readily available as and when required. Technology plays a vital role throughout the life cycle of information systems, beginning with database (DB) technology.

Databases are structured collections of information or facts that store current and future data, making it accessible at any time for organizational use. Additionally, data warehousing technology is employed to store data from both internal and external sources within an organization.

The availability of past and current data serves as a valuable resource for supporting decision-making processes, providing the necessary information at any given time. This book serves as a valuable resource for individuals seeking general and fundamental knowledge about information systems.

It covers essential aspects related to the field, offering comprehensive insights into the subject matter. .