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August 23, 2016
OGC Releases CityGML Quality Interoperability Experiment Engineering Report

The Open Geospatial Consortium (OGC®) has released the results of the CityGML Quality Interoperability Experiment (QIE) as a public Engineering Report. Carried out as a joint activity between the OGC, SIG3D and EuroSDR, the CityGML QIE,  defined data quality requirements for a general CityGML data specification, created recommended implementation guidance for CityGML encoded 3D data, and provided a suite of tools to carry out quality assurance on CityGML data. The CityGML QIE improves the interoperability of CityGML data by removing some ambiguities from the current standard, and formally defining data quality requirements for a general CityGML data standard. OGC Interoperability Experiments are short duration, low-overhead, formally structured and approved interoperability initiatives led and executed by OGC members to achieve specific technical objectives that further the OGC Standards Baseline.The data requirements and recommended implementation guidance obtained in the QIE will serve as input to extend and refine the CityGML standard. These requirements and guidance should meet the OGC Membership and community’s desire for better implementation guidance for OGC standards. The Engineering Report, available for free at portal.opengeospatial.org/files/?artifact_id=68821, specifies the results and findings of the CityGML QIE. About CityGML CityGML is an open data model and XML-based format for the storage and exchange of virtual 3D city models. CityGML defines the basic entities, attributes, and relations of a 3D city model. This is especially important with respect to the cost-effective sustainable maintenance of 3D city models, allowing the reuse of the same data in different application fields. About the OGC The OGC is an international consortium of more than 525 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 www.opengeospatial.org.

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