"System Text makes the process of writing information
extraction code like that of building any other piece of enterprise
software. The major components of System Text are the Development
Environment, Optimizer, and Run-time environment.
"The Development Environment helps the annotator developer to
develop and debug extraction rules. Rules in System Text are
written in AQL, a powerful, declarative language. AQL can express
complex patterns that previous languages could not describe. In
addition, AQL is designed to give System Text Optimizer maximal
flexibility in reordering operations for improved performance. The
Development Environment provides facilities for managing AQL rules
and dictionary files, as well as for testing rules on collections
of representative documents."
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