The IDDW proposed in this paper uses top-down design approach. However, it has advantages over other Distributed DW using top-down design approach. The advantages that the IDDW provides over others are as follows: first, that there is no need to place a DW at each location, rather a DW can be built anytime at any location as per the need of that location; second, IDDW architecture is such that every user registered in the system (i.e. data of registered user stored in a DW within IDDW) is uniquely identified; third, operations to be performed on the system are not location specific rather it can be executed from anywhere within the system; fourth, the internal organization of the proposed system is such that it makes possible for transfer of data from one DW to another.