Data exchange between heterogeneous schemas is a difficult problem that becomes more acute if the source and target schemas are from different data models. The data type of the obj...
Interoperability in service oriented environments is heavily inuenced by the view that the cooperating services have on their data. e term service for the abstract contract concl...
In this paper we study the problem of schema exchange, a natural extension of the data exchange problem to an intensional level. To this end, we first introduce the notion of sche...