Search/Retrieve Web Service

Search/Retrieve Web service (SRW) is a web service for search and retrieval. SRW provides a SOAP interface to queries, to augment the URL interface provided by its companion protocol Search/Retrieve via URL (SRU). Queries in SRU and SRW are expressed using the Contextual Query Language (CQL).

Standards for SRW, SRU, and CQL are promulgated by the United States Library of Congress.

The SRW service and SRU protocol were both created by as part of the ZING (Z39.50 International: Next Generation) initiative as successors to the Z39.50 protocol.

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v t e Internet search
Types	Web search engine (List) Metasearch engine Multimedia search Collaborative search engine Cross-language search Local search Vertical search Social search Image search Audio search Video search engine Enterprise search Semantic search Natural language search engine Voice search
Tools	Cross-language information retrieval Search by sound Search engine marketing Search engine optimization Evaluation measures Search oriented architecture Selection-based search Document retrieval Text mining Web crawler Multisearch Federated search Search aggregator Index/Web indexing Focused crawler Spider trap Robots exclusion standard Distributed web crawling Web archiving Website mirroring software Web query Web query classification
Protocols and standards	Z39.50 Search/Retrieve Web Service Search/Retrieve via URL OpenSearch Representational State Transfer Wide area information server
See also	Search engine Desktop search Online search

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Example usage

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