Revision history Forward OGC® CityGML Quality Interoperability Experiment

2 Copyright © 2015 Open Geospatial Consortium. Hugo Ledoux HL Delft University of Technology Filip Biljecki FB Delft University of Technology Jantien Stoter JS Delft University of Technology, Geonovum, and EuroSDR Egbert Casper EC SIG3D Joachim Benner JB Karlsruhe Institute for Technology Volker Coors VC Stuttgart University of Applied Sciences Lucas van Walstijn LW virtualcitysytems

1.4 Revision history

Date Release Editor Contributor Primary clauses modified Description 2015-02-08 DW Draft of report structure 2015-04-30 HL Draft of all parts related to the geometric validation part 2015-06-01 DW Draft version for discussion 2015-07-27 DW Draft version for discussion 2015-08-10 ST 7.6, 9.2 Fraunhofer input 2015-08-13 DH 7.6.2,9.2.3 Safe Software input 2015-08-14 DW Overall review 2015-08-17 JS Overall review and update previously self- written parts 2015-09-22 LW 9.4.1 Added input on conformance requirements 2016-02-15 JS, VC, HL, EC, DW Discussion and preparation of final version 2016-02-18 EC, HL, DW 4, 7, 9, 10, 11, 12 Last additions 2016-03-08 VC 11, 12 Final editing and change requests 2016-05-26 LW 9.4, 6.2 Added missing information on conformance requirements 2016-07-11 Scott Simmons All Preparation for final publication

1.5 Forward

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The Open Geospatial Consortium shall not be held responsible for identifying any or all such patent rights. Copyright © 2015 Open Geospatial Consortium. 3 Recipients of this document are requested to submit, with their comments, notification of any relevant patent claims or other intellectual property rights of which they may be aware that might be infringed by any implementation of the standard set forth in this document, and to provide supporting documentation. 2 References The following documents are referenced in this document. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the normative document referred to applies. OGC 12-019, OGC ® City Geography Markup Language CityGML Encoding Standard ISO 19107:2003, Geographic information -- Spatial schema SIG3D Modeling Handbook, http:wiki.quality.sig3d.org Dutch CityGML implementation report, http:www.geonovum.nlonderwerpen3d- standaardendocumenten3d-final-report In addition to these documents, this report includes a Solid definition for GML features according to ISO 19197 as specified in Annex A. 3 Terms and definitions For the purposes of this report, the definitions specified in Clause 4 of the CityGML Encoding Standard [OGC 12-019] shall apply. In addition, the following terms and definitions apply. 3.1 Validation Process of validating a CityGML data set against a specified set of requirements. A valid data set is conformant to these requirements. 3.2 Requirements Rules and restrictions to define data structure and content unambiguously. Requirements can be derived from the CityGML Standard document or be defined separately as refinement of the CityGML standard to avoid ambiguities of the standard andor specify further requirements userapplication dependent. 3.3 Check Algorithmic implementation to check if a requirement is met in a validation software. 4 Copyright © 2015 Open Geospatial Consortium. 3.4 Error Result of a check in case of non-conformance. 3.5 Validation Plan Structured list of requirements, usually depending on use case. 4 Conventions

4.1 Abbreviated terms