In this blog post, Sesam annonces that their middleware architecture, Sesam Search Application Toolkit (SESAT) is released as open source software. This is the piece of software (written in Java) which sits between the portal (such as sesam.no) and the data sources (such as FAST ESP, Yahoo! or a database) and dispatches in parallel a single user query into multiple underlying requests and returns everything according to business rules. This is often referred to as federated search.

Here’s Sesam’s own description of the software:

“SESAT is search middleware and a search portal framework. SESAT enables a single user query to be dispatched to multiple information sources. The result is analysed, weighted and presented to the user according to configurable business rules.”

Congratulations with contributing to Open Source, Sesam! And good luck with creating a community around this important piece of middleware, we’ll see more and more demand for it in the future!

Now, go check it out on http://sesat.no/ if this is something that can be useful to you!

PS: Learn more about other federated search solutions at the federatedsearchblog.com