Distributed Heterogeneous Information Systems (Invited Talk)
William A. Carpenter, Gholamreza Emami, Emanuel G. Mamatas, Alok C. Nigam · 1994
Many organisations have major investments in information systems, ranging from legacy programs written in COBOL to newer relational database management systems. These distributed heterogeneous information systems (DHISs) do not generally interoperate or share information. However, commercial-off-the-shelf (COTS) software products are becoming available that can make DHISs appear as though they were a single integrated system. MITRE recently completed an internal project that examined two COTS DHIS integration products in a test environment consisting of six information systems, and two clients running on eight platforms in three cities. Based on this prototyping effort, we believe that there are many applications in which DHIS integration technologies would be appropriate. Our presentation will include an overview of our prototypes, a description of the work we have done, and a summary of the lessons learned.