External view construction for database uniformization

Database uniformization refers to the building of a common user interface facility to support uniform access to any or all of a collection of distributed heterogeneous databases. A proposed solution for database uniformization includes a global data manager which accepts a user's query on the user's global view and returns the results by consulting the various databases. In this paper the external-to-conceptual mapping component of the global data manager is described and the design using portions of sample NASA GSFC databases is illustrated with typical applications.