# /research/software/srw/default.htm

originally: http://www.oclc.org/research/software/srw/default.htm

# SRW/U

The SRW/U Open Source project offers software that implements both the SRW Web Service and the SRU REST model interface to databases. Included are interfaces that support DSpace's Lucene implementation and OCLC's Pears and Newton databases.

## Background information about SRW/U

- OCLC Research project page
- SRW/U Background (Library of Congress)
- Z39.50 As A Web Service.
(PowerPoint:418K/17 slides)

## Powered By SRW/U

Applications running interfaces on top of our SRW server may display the "Powered By SRW/U" icon:

This icon can be added to your pages by copying the HTML fragment below:

>     <a href="http://www.oclc.org/research/software/srw">
>     <img src="http://www.oclc.org/research/images/badges/oclc_srwu.gif"
>     alt="Powered by OCLC SRW/U" width="80" height="15"/></a>

The SRW server depends on its underlying database technology. In one instance, SRW is built on top of OCLC Research's Open Source Gwen Search Engine and Pears Database Engine. SRW is also distributed as part of DSpace and uses DSpace's underlying Lucene and PostgreSQL databases.

## License

## Distribution

The SRW/SRU server code and documentation are now hosted on Google™ Code, at http://code.google.com/p/oclcsrw/.

## Related pages

- Gwen
  http://www.oclc.org/research/software/gwen/
- Pears
  http://www.oclc.org/research/software/pears/
- DSpace
  http://www.dspace.org
- Lucene
  http://jakarta.apache.org/lucene
- PostgreSQL
  http://www.postgresql.org

## Contact

- Ralph LeVan