City GML (Exchange and Storage of Virtual 3D City Models) uses OASISCIQ Specs

[Ram Kumar <ram.kumar@oasis-open.org>]

CityGML is a common information model for the representation of 3D urban 
objects. It defines the classes and relations for the most relevant 
topographic objects in cities and regional models with respect to their 
geometrical, topological, semantical and appearance properties. Included 
are generalization hierarchies between thematic classes, aggregations, 
relations between objects, and spatial properties. These thematic 
information go beyond graphic exchange formats and allow to employ 
virtual 3D city models for sophisticated analysis tasks in different 
application domains like simulations, urban data mining, facility 
management, and thematic inquiries.


http://www.citygml.org/

Regards,

Ram