The concept of eHealth is gradually progressing towards the maturity of a high order. It is a universal fact that in all the organizations, existing as well as new applications invariably require access to relevant data distributed over disparate systems and databases located at several local as well as remote locations. An example similar to this environment exists in eHealth care which has come to rely on the mobile technology applications (mHealth) to reach the end users for its services delivery that confronts with issues and challenges. To tackle such an environment, there are various information integration techniques available already, for example. schema integration data warehousing federated databases distributed and adaptive query processing systems.