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

As of feb 8th it is official, Microsoft has aquired 97,2% of FAST, and can now legally force the buyout of the rest. Microsoft have been very active on the acquisition front lately, also trying a hostile takeover of Yahoo to gain a share of the global online advertising market which Google currently dominates. There is definitely a cosolidation in the search market towards fewer, bigger players.

With the FAST ESP technology, Microsoft will be able to compete better in the Enterprise search space. It is strange how come the world’s largest software firm does not manage to be innovative themselves, but have to buy other companies all the time to be able to really compete. It will be interesting to observe MS’s long-term roadmap for the FAST technology.

Open Source Software (OSS) and free software has been an alternative to commercial, licensed software for decades. Most known and successful are perhaps projects like GNU/Linux (licensed under the GNU General Public License, GPL), OpenOffice.org, Apache web server and MySQL. They have all managed to produce excellent, high-quality, stable software with an impressive wide-spread use. Other well known projects that are also Open Source are Java programming language, Norwegian TrollTech’s (now Nokia) Qt, Mozilla Firefox, Thunderbird, eZ Publish, and the list goes on.

For Search, there are a few players picking up speed that you should be aware of:

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