1 <!-- $Id: introduction.xml,v 1.5 2004-04-23 16:25:18 adam Exp $ -->
2 <chapter id="introduction"><title>Introduction</title>
4 The <ulink url="http://www.indexdata.dk/yazproxy/">YAZ Proxy</ulink> is
5 highly configurable and can be used in a number of different
6 applications, ranging from debugging Z39.50-based applications
7 and protecting overworked servers, to improving the performance of
8 stateless WWW/Z39.50 gateways. Among other features, it includes:
12 <ulink url="http://www.loc.gov/z3950/agency/zing/srw/">SRW/SRU</ulink>
13 server function, to allow any Z39.50 server to also support
14 the <ulink url="http://www.loc.gov/z3950/agency/zing/">ZiNG</ulink>
21 Load balancing across multiple backend servers
27 Session-sharing and pre-initialization to improve performance
28 in servers with expensive session initialization
34 Configurable request filtering, to keep bad requests from
41 <ulink url="http://www.w3.org/XML/">XML</ulink> support --
42 MARC records can be converted to
43 <ulink url="http://www.loc.gov/standards/marcxml/">MARCXML</ulink>, and
44 <ulink url="http://www.w3.org/TR/xslt">XSLT</ulink>-transformations
45 allow the proxy to support arbitrary retrieval schemas in XML
51 Load governor function limits requests from aggressive
64 Efficient multiplexing software enables small memory footprint
65 and very high performance
72 <title>Licensing</title>
74 The proxy application and the proxy library is covered by the
75 <link linkend="gpl">GPL</link>.
79 <section id="support">
80 <title>Support</title>
82 Configuration and installation assistance and ongoing support is
83 available for the YAZ Proxy.
84 For further information about support or licensing options, please
85 contact David Dorman in the
86 US (dorman at indexdata.com, 860-346-1237 or toll free 866-489-1568)
87 or Sebastian Hammer in Denmark (quinn a indexdata.com, or +45 3341 0100)
93 <!-- Keep this comment at the end of the file
98 sgml-minimize-attributes:nil
99 sgml-always-quote-attributes:t
102 sgml-parent-document:"yazproxy.xml"
103 sgml-local-catalogs: nil
104 sgml-namecase-general:t