19 May 2014 - The Open
Geospatial Consortium (OGC®) Membership seeks organizations and individuals to participate in
the development of the next major version of the OGC City Geography Markup Language (CityGML). See the Call for
Participation at http://www.opengeospatial.org/standards/requests/119.
CityGML is a comprehensive
open data model framework and XML-based encoding standard for the modeling,
storage, and exchange of virtual 3D city and landscape models. In 2008 it was
adopted by the OGC membership as an international OGC standard. CityGML is
being implemented across Europe, Canada, the Middle East and Asia. It has even
been adopted by several countries including The Netherlands and Germany as an official
national and municipal 3D geo information standard, and it has been adapted as
part of the European Union's common spatial data infrastructure INSPIRE.
CityGML is implemented as
an application schema of the OGC Geography Markup Language 3 (GML3) Encoding
Standard (http://www.opengeospatial.org/standards/gml), an international
standard for spatial data exchange and encoding approved by the OGC and ISO.
Since the release of
CityGML 2.0, a number of CityGML change requests have been submitted to the
OGC. In June 2013, further requirements and ideas guiding the development of
CityGML 3.0 were gathered and discussed at an international workshop jointly
hosted by the OGC and the Special Interest Group 3D (SIG 3D). All presentation slides and the minutes of the workshop
are available here: http://en.wiki.modeling.sig3d.de/index.php/Workshop_Munich_2013 . The outcomes of this ongoing discussion are
formally captured in a list of work packages that define the overall work scope
for CityGML 3.0. Examples of the identified work include changes to CityGML’s
level-of-detail concept, additional semantic model structures such as building
storeys, floor plans and utility networks, as well as new complex attributes such
as time series and metadata. To the extent feasible, new features will minimize
impacts on backwards compatibility that might affect the many communities using
the current version of CityGML.
The OGC solicits input and
expertise from CityGML users, data producers, software vendors, and scientists
in order to identify participants willing to contribute to and able to assume
ownership for the work of the work packages under the joint leadership of the OGC CityGML Standard Working Group (SWG) and the SIG 3D. This call explicitly includes non-OGC
members. Active participation in the CityGML 3.0 development process does not
require OGC membership. To be most effective, organizations and individuals
responding to this CFP should plan to fully participate in the CityGML 3.0
Responses to the CFP are
requested by the time of the 10 June 2014 kickoff of CityGML 3.0 development at
the OGC Technical Committee meeting in Geneva, Switzerland. Note, however, that
this CFP will remain open for the duration of the CityGML 3.0 development
All OGC standards are free and publicly available.
The OGC is an international consortium of more than 475 companies,
government agencies, research organizations, and universities participating in
a consensus process to develop publicly available geospatial standards. OGC
Standards support interoperable solutions that "geo-enable" the Web,
wireless and location-based services, and mainstream IT. OGC Standards empower
technology developers to make geospatial information and services accessible
and useful with any application that needs to be geospatially enabled. Visit
the OGC website at http://www.opengeospatial.org/contact.