Information technology growth has tremendously changed the magnitude of the simple library science to broad information science. Most recent evaluation techniques used in the information science focus mainly on the key areas like user frequencies, requirements of different user groups, predictions regarding the future user requirements and accomplishment of the services. For attaining these, the internet technology helps the technologically based intellectual storage to drive the information science to establish the digital library. The digital library is not just one entity but it is integrated with multiple sources. As a result, building the data warehouse architecture in digital library provides centrally integrated source enabling retrieval of the vast information available at low cost irrespective of the type of format required.