Electronic Journal of SADIO
http://www.dc.uba.ar/sadio/ejs
vol. 2, no. 1, pp. 30-49 (1999)
Mediators Metadata Management Services : An Implementation Using GOA++ System
Thaís Saldunbides Brügger1 |
Paulo de Figueiredo Pires1 |
Marta Mattoso 1 |
Abstract
The main contribution of this work is the development of a Metadata Manager to interconnect heterogeneous and autonomous information sources in a flexible, expandable and transparent way. The interoperability at the semantic level is reached using an integration layer, structured in a hierarchical way, based on the concept of Mediators. Services of a Mediator Metadata Manager (MMM) are specified and implemented using functions based on the Outlines of GOA++. The MMM services e are available in the form of a GOA++ API and they can be accessed remotely via CORBA or through local API calls.