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Lars Heuer

Author of


by Lars Heuer and Johannes Schmidt 


This presentation introduces a new generation of the common Topic Maps API (TMAPI) which has evolved from earlier versions based on the Topic Maps …

Was presented at TMRA 2008.

Streaming Topic Maps API

by Lars Heuer 


This paper introduces a new, event-based API to create topic maps. It is independent of particular Topic Maps processors and enables developers to …

Was presented at TMRA 2008.

Topic Maps - Compact Syntax

by Dmitry Bogachev, Lars Heuer, ...  


CTM (Compact Topic Maps) is a text-based notation for representing topic maps. It provides a simple, lightweight notation that complements the …

Proposal for a streaming Topic Maps API

by Lars Heuer 


The current implementation is very liberal and flexible. I.e. it is allowed to call “startAssociation” while you’re in the Topic-state. So, you can …

Proposal to remove variants in 13250-2 ...

by Robert Barta and Lars Heuer 


In Atlanta the committee members decided that the Topic Maps – XML Syntax XTM 1.1 need not be backwards compatible to XTM 1.0. The namespace for …

AsTMa= 2.0 Language Definition

by Robert Barta and Lars Heuer 


Topic Map engineering includes several activities, one of them being authoring of maps. The authoring language AsTMa= itself is designed for human …

A TMDM Disclosure Using T+

by Robert Barta and Lars Heuer 


Both the more pragmatic Topic Map data model (TMDM) and the more fundamental Topic Map Reference Model (TMRM), have reached now a certain degree of …

Was presented at TMRA 2005.

AsTMa= v2.0 Authoring Topic Maps

by Lars Heuer 


This presentation describes the Version 2.0 of AsTMa=.

Was presented at TMRA 2005.

PanTau – A Topic Map engine build ontop ...

by Lars Heuer 


This presentation gives an overview on the PanTau Topic Maps engine, shows the Tau+ basics, how it can be implemented and summarizes, that Tau+ is a …

Was presented at TMRA 2005.

Towards Converting the Internet into Topic ...

by Lars Heuer 


This paper describes Semants, a work-in progress framework that uses the Wikipedia as focal point to collect information from various resources. …

Was presented at TMRA 2006.

CTM - Use Cases (2006)

by Lars Heuer 


This document provides use cases for the Compact Syntax for Topic Maps (CTM). These use cases should provide criteria to evaluate the existing …

TMAPI 2.0 tutorial

by Lars Heuer and Johannes Schmidt 


TMAPI 2.0 is new generation of the common Topic Maps API. This tutorial gives an introduction into the changes between TMAPI 1.0 and 2.0 (Java) and …

Was presented at TMRA 2008.

Pidgin English for Topic Maps Knowledge ...

by Robert Barta and Lars Heuer 


This paper introduces a new generation of the AsTMa= notation which has evolved from earlier versions based on usage patterns from novices and …

Was presented at Topic Maps 2007.

Compact RDF to Topic Maps Mapping Syntax ...

by Lars Heuer 


The RTM specification defines an RDF vocabulary which describes how RDF triples are converted into Topic Maps constructs. While that approach …

Author of

The differences between subject ...

by Lars Heuer


This article describes the differences between subject identifiers, item identifiers, and subject locators in the TMDM.

Is about TMDM.

Editor of

Topic Maps — Compact Syntax (CTM, ISO ... 

Edited by Dmitry Bogachev, Gabriel Hopmans, ... .


CTM (Compact Topic Maps) is a text-based notation for representing topic maps.

Project Leader of

Semagia TMAPIX

is a {{project}}.


The TMAPIX package reads several Topic Maps syntaxes and is usable with any TMAPI 2.0 compatible Topic Maps engine.

Visit homepage of Semagia TMAPIX

Topic Maps converters

is a {{project}}.


A set of XSL stylesheets to convert Topic Maps syntaxes. The set contains the following converters: * XTM 1.0 to CTM 1.0 * XTM 1.0 to XTM 2.0 / ...

Visit homepage of Topic Maps converters


is a {{project}}.


Mappify is a webservice which converts RDF files into Topic Maps files (as CTM, XTM, JTM). It bases on Ontopia's ...

Visit homepage of Mappify

Topic Maps to Topic Maps converter

is a {{project}}.


The converter is a service which translates different Topic Maps syntaxes to XTM 2.1, CTM 1.0 and JTM 1.0. Supported input formats are: * JSON ...

Visit homepage of Topic Maps to Topic ...

Pastebin for Topic Maps synatxes.

is a {{project}}.


This tool is a pastebin for Topic Maps synatxes. It supports * CTM * XTM * CRTM * LTM More syntaxes like tolog will follow. ...

Visit homepage of Pastebin for Topic ...


is a {{project}}.


Cablemap converts the WikiLeaks Cablegate dataset into Topic Maps. Further, it provides utilities to extract information from the Cablegate ...

Visit homepage of cablemap

Oomap Loomap

is a {{project}}.


Oomap Loomap is a GUI to execute queries against locally loaded Topic Maps. Currently it supports the following languages: ...

Visit homepage of Oomap Loomap


is a {{project}}.


A SPARQL 1.1 Graph Store HTTP Protocol implementation for RDF and Topic Maps. The protocol allows creation of graphs, deletion of graphs and ...

Visit homepage of Cassa

Project Member of


is a {{project}}.


Ontopia is a complete set of open source tools for building, maintaining, and deploying Topic Maps-based applications.

Visit homepage of Ontopia

TMAPI - Common Topic Map Application ...

is a {{project}}.


TMAPI is a programming interface for accessing and manipulating data held in a topic map. The TMAPI specification defines a set of core interfaces ...

Visit homepage of TMAPI - Common Topic ...


is a {{project}}.


TMAPIX is a package of utilities for TMAPI compatible Topic Maps engines.

Visit homepage of TMAPIX


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I like the easy but powerful way of merging Topic Maps to extend and combine existing knowledge bases. Thus I see high potential in distributed environments where peer to peer solutions may open the gates to the real Web 3.0.

Marcel Hoyer
Topic Maps Lab auf der Cebit 2011

Graduate from the Topic Maps Lab