Development of XML Schemas for Implementation of a 3D Cadastral Data Model
Abbas Rajabifard et al.
A 3D cadastral data model (3DCDM) was developed to support integration of legal and physical information that are required for 3D cadastral applications. The 3DCDM model has twelve sub-models or modules including 3DCDM Geometry Model, 3DCDM Root Model, 3DCDM LegalPropertyObject Model, 3DCDM InterestHolder Model, 3DCDM Survey Model, 3DCDM CadastralPoints Model, 3DCDM Building Model, 3DCDM Land Model, 3DCDM Tunnel Model, 3DCDM UtilityNetwork Model, 3DCDM PhysicalPropertyObject Model, and 3DCDM Terrain Model. Sub-models are selected based on the user requirements and the application. For example, if the purpose of using the 3DCDM model is to model a building and visualise its ownership boundaries, only 3DCDM Building Model and 3DCDM Root Model are used. The 3DCDM Root Model must be used in each implementation of the 3DCDM model. This paper aims to develop a physical data model of the 3DCDM model. It is developed as an application schema of the Geography Markup Language 3, version GML3.2.1. GML is an XML grammar defined by the Open Geospatial Consortium (OGC) to express geographical features. Each module has a separate schema that support implementation of the 3DCDM model.
Event: 4th International FIG 3D Cadastre Workshop
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