Abstract
Abstract. Standardization in land administration domain has been expanded to 3D and even 4D representations, adopting a multipurpose character, in order to become the foundation of a sustainable and smart economic development. At the moment, although the potential benefits of 3D Cadastre is argued to be enormous and there are plenty of standards related to 3D Cadastre while others enhancing the role of 3D Cities, there is no complete solution for 3D Cadastre. That being so, the last years, there has been a rapid increase in the integration, harmonization and implementation support of such standards. In this context, the integration of 3D legal spaces with 3D physical objects is gaining ground, as the (invisible) legal boundaries do not always match with the physical counterparts, leading to obscure situations. LADM, the International Standard for land administration, was proved to be one of the best candidates to unambiguously represent 3D Rights, Restrictions and Responsibilities. On the other side, spatial data models and virtual city models manage 3D urban structures without focusing on legal aspects. Many researchers have explored integrations between those aspects giving promising results. In this direction, apart from international standards, also national standards have been developed to enable the communication between land information systems. One of the most representatives is INTERLIS, a Swiss standard, a precise, standardized Object Relational modelling language on the conceptual level, which allows for automated quality control. Thus, in this paper the focus is given on how INTERLIS and LADM complement each other in the actual implementation of land administration systems. Main challenges among others in the context of this research include: 1. extensible hierarchical and versioned code lists in INTERLIS models, 2. formally define LADM constraints in INTERLIS, 3. discuss 3D geometry types and 4. introduce a holistic LADM/INTERLIS approach for country profiles.
Highlights
Taking advantage of the developments in 3D geo-information, multiple standards have been developed as domain specific standardization, much needed to capture the semantics of land administration field
The generic Land Administration Domain Model (LADM)/ INTERLIS approach can be implemented in any LADM-based model in order to get a platform independent exchange format linked to the conceptual model
It is proved that the INTERLIS concept, with the development of supplementary tools can be used as an external validating mechanism for LADM-based models, as presented by Kalogianni et al, 2016
Summary
Taking advantage of the developments in 3D geo-information, multiple standards have been developed as domain specific standardization, much needed to capture the semantics of land administration field. Harmonizing and integrating such standards and models in order to support registrations and land administration procedures using Geographic Information Systems along with Data Base Management Systems and applications is crucial. The necessary background information is briefly presented.
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