lynch@theory.tn.cornell.edu (Tim Lynch) (11/28/90)
Hello, I am interested in coming up to speed on what the current state of the art is in regards to heterogenous distributed database design. I am interested in something that allows for a user-interface front-end to query a network of data servers to: 1) locate the information in question, and 2) engage in a dialog (front-end and data server) to establish what and how the data will be transmitted. I'm interested specifically in systems that: 1) allow a front-end to be completely ignorant of the data layout, and 2) define some canonical form(s) for data exchange. For example, consider several data servers each maintaining a bibliographic database with each db formatted in some unique manner. Rather that develop a front-end that knows about each db, I would rather develop a data server module for each db that can communicate with the user front-end and provide bibliographic info in some canonical form to the front-end. I'm rather new to this field and am searching for information where ever I can. At this point, I must admit I haven't been very successful in locating anything. Pointers to real working systems, research projects, or simple 'toy' implementations would be greatly appreciated! Thanks in advance. If anyone wishes to see what I glean, e-mail me. If interest is sufficient, I'll post a summary. Tim Lynch, Mann Library