<networking, standard> Information Retrieval Service Definition and
Protocol Specification for Library Applications, officially known as ANSI/NISO
Z39.50-1992, and ANSI/NISO Z39.50-1995. This standard, used by WAIS, specifies
an OSI application layer service to allow an application on one computer to
query a database on another.
Z39.50 is used in libraries and for searching some databases on the Internet.
The US Library of Congress is the official maintanence agency for
Index Data, a Danish company, have released a lot of Z39.50 code. Their website
explains the relevant ISO standards and how they are amicably converging in
Z39.50 version 4.0.
ANSI/SPARC Architecture « ANSI/SPARC model « ANSI
ANSI Z39.50 » Anthony Hoare » anti-aliasing »