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AsTMa* Language Family

Introduction, was published by Robert Barta at 2005-05-26

This document gives an overview over the AsTMa* language family.

External Link: more information

To address some aspects of knowledge engineering with Topic Maps, the AsTMa* language family was created. The objective was to define a set of notations within one common concept framework and with a common mindset. This should provide all involved parties to have a migration path from topic map authoring up to transforming ontologies.

This common framework also makes it easier to provide a consistent underlying formalism and to define a coherent semantics on language constructs. In that the AsTMa* way of topic mapping will hopefully have few alignment problems between the individual sublanguages.

These sublanguages themselves are embedded within each other: the authoring notation AsTMa= is used by the constraint language AsTMa! and that, in turn, is part of AsTMa?, the querying and retrieval language. The fourth language AsTMa+ for updates is only available as idea-ware, so it cannot be discussed in great detail.


Robert Barta

No contact information available. 


Robert is project leader of Perl XTM Engine (superseeded.. and Perl TM.


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Topic Maps is an excellent paradigm to support human thinking and to visualize networked information. As part of my PhD project, I therefore chose Topic Maps as the conceptual foundation for designing and implementing a software prototype for semantic knowledge retrieval.

Stefan Smolnik
Topic Maps Lab auf der Cebit 2011

Graduate from the Topic Maps Lab