Virtual Cellhome page: http://www.nrcam.uchc.edu/login/login.html
Unfortunately, although they claim to have a declarative model-representation language, it is not immediately obvious, when visiting their site, where this is defined.
The CellML home page: http://www.cellml.org/
SBML home page
http://www.sbml.org
Coneference paper on ModelicaXML
http://www.modelica.org/events/Conference2003/papers/h39_Pop.pdf
This page links to other initiatives aimed at developing modelling- and simulation-related markup languages.
This page links to other relevant technologies and initiatives.
Must have pictures.
Initial development release.
Tool for converting between Simile Prolog and SimileXMLv3.
The tool is a XSugar rule-set.
This tool along with associated tools is now available as an online service at http://webflow.simileweb.com/