Holger Knublauch - Professional

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I have been working as a software developer for my entire career, mostly focusing on Java and, more recently, JavaScript. A consistent topic throughout my projects has been the development of tools for knowledge modeling.

My current job title is Vice President, Research & Development at TopQuadrant. In this role I enjoy some freedom in creating new technologies in the fields of Linked Data, Semantic Web and ontology modeling. In addition to TopBraid Composer, I have created a stack of SPARQL-based languages for rules and constraints (SPIN), data processing pipelines (SPARQLMotion) and user interface templates (SPARQL Web Pages).

Here are some example projects that I contributed to as a lead developer. Many of those are listed only for historical interest.

TopBraid Composer (2006-)
	The leading professional development tool for Linked Data and Semantic Web content and applications. Employer: TopQuadrant, Inc..

Protege OWL Plugin (2003-2005)
	A complex extension the ontology editor platform Protege to support editing Semantic Web contents in the Web Ontology Language (OWL). Employer: Stanford Medical Informatics (now BMI).

AGILShell (2000-2002)
	A process modeling tool for the development of multi-agent systems. Employer: FAW Ulm (former research center at Univerity of Ulm).

KBeans (1998-2001)
	A tool-supported extension of JavaBeans that allows to represent semantic constraints on object states. Employer: FAW Ulm (former research center at University of Ulm).

SPIRIT (1993-1998)
	A probabilistic expert system shell. Employer: University of Hagen, Department of Operations Research.

Boulderland (1997)
	A highly successful arcade game that I wrote in order to teach myself Java. There used to be multiple copies of this game hosted across the web, but it probably became a bit dated by now. I used some ideas of this game later in the context of SPIN, see my Blog entry and my SemTech 2009 video.

Furthermore, I have made contributions to several other systems:

POWM (1999-2002)
	A visual process modeling tool which allows to capture engineering knowledge and to organize working documents.

ANIS (1998-2000)
	A knowledge-based anesthesia information system, including knowledge modeling tools.

Cardio-OP (1998-2001)
	Teachware for cardiac surgery, including a visual authoring environment.

MMM (1997)
	Teachware for highschool maths, based on Java 1.0.