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TMQL tutorial, part 7

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This is the seventh part in a series of TMQL tutorials.

Learn with this series of TMQL tutorials how to query Topic Maps with a structured query language. With Maiana you can exercise all examples given in the slides (you have to be logged in to query maps in Maiana). The TMQL4J library allows you to use TMQL in all of your applications and provides you a detailed documentation of all TMQL features.

Part 7 of 8 of the TMQL tutorial introduces and demonstrates the use of conditional expressions as a powerful and useful feature. The modification language of TMQL is also covered.(All slides are in German.)

Go back to part 6 of this TMQL tutorial.

Proceed with part 8 of this TMQL tutorial.

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Subject Matter


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The tmql4j engine is the first Java-based engine processing the topic maps query language. The engine is designed as processing chain of independent ...

Visit homepage of TMQL4J


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Maiana - Yet another generic topic maps browser? Yes, but it's social :) *What it is?* Maiana is the most efficient service to host, explore and ...

Visit homepage of Maiana



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TMQL is the abbreviation for Topic Maps Query Language.


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The idea of Topic Maps is essential to enable dynamic information logistic. This requires a system that understands the context of the user to provide relevant informations and options automatically. Therefore semantic analysis is needed organizing content in a dynamic net structure.

Jörg Wurzer
Topic Maps Lab auf der Cebit 2011

Graduate from the Topic Maps Lab