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- Newsgroups: comp.client-server
- Path: sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!darwin.sura.net!gatech!concert!rock!jazz!fullton
- From: fullton@jazz.concert.net (Jim Fullton)
- Subject: Z39.50 Project Announcement
- Message-ID: <1992Dec23.210028.27061@rock.concert.net>
- Sender: news@rock.concert.net
- Organization: MCNC Center for Communications -- CONCERT Network
- Date: Wed, 23 Dec 1992 21:00:28 GMT
- Lines: 102
-
-
- As some of you may know, the U.S. National Science Foundation has funded
- the creation of the Clearinghouse for Networked Information Discovery
- and Retrieval. One of the responsibilities of CNIDR is to promote the
- use and development of tools for discovering and using networked
- information. We have been specifically charged with the task of
- providing an evolutionary path for the public-domain version of WAIS,
- the Wide Area Information Server. Therefore, we have been paying close
- attention to the remarks and "wish lists" provided by the network
- community, and are well into a project to try to fulfill those wishes.
-
- We are in the early beta test stages of a new generation of WAIS-like
- systems that build on the heritage of WAIS as released by Thinking
- Machines, but with quite a bit of extensibility and new features.
- Specifically, and with the help of many others, we're creating a
- Z39.50-92 (soon to be 93) server with full backwards compatibility with
- current WAIS clients and indexes, features such as boolean search,
- formatted searching on fielded text information, thesaurus based synonym
- substitution, stemming, and a search engine integration toolkit.
-
- While the server maintains compatibility with current WAIS clients, it
- will also allow searches and retrievals from any Z39.50 client capable
- of recognizing the BIB-1 or INFO-1 attribute sets. Clients developed for
- this system will also be able to interact with library automation
- systems within the constraints of the attribute sets. We also hope to
- provide a tool to make various Z39.50 server maintenance tasks easier.
-
- We hope to support the following Z39.50 features:
-
- 1) BIB-1 and dynamic INFO-1 searches
-
- 2) ES-1 element sets, which allow even more retrieval flexibility than
- the current WAIS server.
-
- 3) Access and resource control - essentially, this will allow for secure
- servers and servers that can accept billing information from the user.
-
- 4) EXPLAIN. Smart clients can use the EXPLAIN facility in conjunction
- with their preferred attribute set to provide customized search options
- for the user.
-
- Basic search engine features (configurable):
-
- Synonym lookup
-
- Stemming
-
- Formatted field searches
-
- Boolean search logic (to be added before release)
-
- We have not yet begun to create the search engine toolkit as we think we
- need more user input, and the clients are rudimentary at best. We do
- hope to have the server running and ready for beta-test by February,
- although alpha code will be available much sooner. Clients wil take
- somewhat longer as user interface development can be quite time
- consuming. The entire system will, of course, be freely available for
- use and modification by the network community.
-
- On the client side, work is progressing on clients for the Macintosh and
- Unix systems, with a PC client in the wings.
-
- So, when will this wonderful thing be ready? We actually have a server
- running that answers both WAIS and Z39.50-1992 queries on the same port,
- but returns results in a non-standard transfer syntax. We are in the
- process of changing this to support INFO-1 generic data records, and
- hope to have that completed soon.
-
- We have had many comments from interested folks asking us to make these
- plans known to the rest of the network community, and at the risk of
- announcing vaporware, are doing so.
-
- How can you help? We have already had quite a bit from many people, most
- notably John Kunze at the University of California at Berkeley and
- Clifford Lynch at UCOP. John created most of the server code and
- designed the INFO-1 attribute set as well as the ES-1 element set
- structures. I have made the server modifications to support free-text
- searching and WAIS compatibility, as well as making the necessary
- changes to the WAIS search engine. Members of Joan Gargano's staff at
- the University of California at Davis are now working on X Windows
- clients.
-
- We are looking for folks willing to work on clients and run beta-test
- servers with their current WAIS information bases. Once our transfer
- syntax code is firmed up, trial servers will be made available for this
- purpose.
-
- As technical manager for the Clearinghouse (as of December 1), I will
- help coordinate development tasks and incorporate any of your
- contributions into releases (with attribution, of course). We also have
- staff who will provide documentation and support for final releases.
-
- Your comments and suggestions are welcome, and we look forward to
- hearing from you.
-
-
-
-
- Jim Fullton
- Clearinghouse for Networked Information Discovery and Retrieval
- Phone: (919)-248-9247 E-mail: fullton@concert.net
-
-