Bethesda, Md., USA – (April 10, 2002) NISO, the National Information Standards Organization, has released for ballot a maintenance revision of NISO's landmark standard Z39.50-1995. This standard specifies a client/server-based protocol for Information Retrieval defining procedures and formats for a client to search a database provided by a server, retrieve database records, and perform related information retrieval functions. The protocol addresses communication between information retrieval applications at the client and server. Balloting will be conducted from March 29 through May 13, 2002. This is a Maintenance Revision, and no existing implementations will be disrupted.
This maintenance revision incorporates all the corrections, defect reports, and amendments. approved by the ZIG since 1995. These changes include: implementer agreements, amendments such as duplicate detection service and encapsulation, defect reports, commentaries, clarifications, version 3 baseline requirements, Z39.50 attribute architecture, and negotiation model. The Library of Congress is the Maintenance Agency and Registration Authority for the Z39.50 standard, and documentation on these changes can be found on their website at: lcweb.loc.gov/z3950/agency/amend/amend.html. The draft standard is available for free ownloading from the NISO website at www.niso.org.
NISO is the only U.S. group accredited by the American National Standards Institute to develop and promote technical standards for use in information delivery services providing voluntary standards for libraries, publishers and related information technology organizations. All NISO standards are developed by consensus under the guidance of experts and practitioners in the field to meet the needs of both the information user and the producer. For information about NISO's current standardization interests and membership possibilities, please visit the NISO website at www.niso.org.