- From: Kevin Gamiel <kgamiel@cnidr.org>
- Date: Thu, 24 Jul 2003 09:22:45 -0400
- To: www-zig@w3.org
Hi folks, A discussion has come up on our GridIR list (http://www.gridir.org) about models. To aid that discussion, I have a question about the Z39.50 model. The search service provides a method for applying a query expression "directly" against a set of databases (DB), generating a logical, server-side result set (RS). The present service provides a method for retrieval of records from a RS. The RS is *not* modelled directly as a DB, that is, the search service may not use an RS directly as if it were a DB. However, type-1 and type-101 queries (at least), allow one to include an RS reference as an operand, *effectively* turning an RS into a DB, though with some (minor?) loss of functionality. Was including an RS as a query operand a clever afterthought to avoid changing the underlying data model, or is there a more significant reason to maintain the DB/RS model distinction? Thanks! Kevin -- Kevin Gamiel <kgamiel@cnidr.org> MCNC Center for Networked Information Discovery and Retrieval (CNIDR) http://www.mcnc.org http://www.cnidr.org
Received on Thursday, 24 July 2003 09:22:52 UTC