yaz: YAZ (a programmers toolkit) yaz: yaz: YAZ is a programmers toolkit supporting the development of Z39.50/ yaz: SRW/SRU clients and servers. Z39.50-2003 (version 3) as well as SRW/ yaz: SRU version 1.1 are supported in both the client and server roles. yaz: yaz: The current version of YAZ includes support for the industry standard yaz: ZOOM API for Z39.50. This API vastly simplifies the process of yaz: writing new clients using YAZ, and it reduces your dependency on any yaz: single toolkit. yaz: