Summa

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Summa is a fast modular and scalable search engine written in Java. Summa is characterized by:

  • Integrated search. Summa can simultaneously access a number of different data and data sources and expose it in a unified interface.
  • Modular design. The Summa search system consists of a set of independent modules, which makes it simple and easy to maintain and upgrade.
  • Scalable. Summa supports a distributed architecture and can be scaled up or down to handle any amount of data.
  • Open standards. Summa is based upon modern web technologies and standards, and don’t include any proprietary codes or elements.
  • Failure tolerant. If a single source of data or service should fail, Summa will continue without that specific source.

http://wiki.statsbiblioteket.dk/summa/

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