Model driven architecture engineered land administration in conformance with international standards – illustrated with the Hellenic Cadastre

Abstract

Over the last years, the new role of Land Administration in realising the Information Infrastructure and the need to address spatial and non- spatial land related data exchange between countries emerged and since then, standard models were created and put into use. Two examples of these standards are the Land Administration Domain Model and INSPIRE's Cadastral Parcels. The former is an official international standard with a great deal of prospects; it is based on the 'people - land' relationship and has many applications apart from storing data about properties. The latter is part of a specification framework (set of rules) describing how cadastral parcels can serve as reference for creating a European Spatial Data Infrastructure, enabling cross border dissemination of data. This paper provides the design of a conceptual model in conformance with both standards. Within this context a Land Administration Domain Model - compliant country profile and the INSPIRE model for Cadastral Parcels are proposed based on characteristic cases from the Hellenic Cadastre. Applying LADM brings along the collective international expertise on various aspects, which are analysed and applied for Greece: including administrative and spatial sources, supporting historical data (versioning), integration of legal (rights) and spatial data (cadastral map), including different register types (Archaeological, Urban, Rural, Forest), and allowing for an integrated 3D registration. This research results in a model that can be used as a transition from the current cadastral system to a fully LADM- compliant one, taking also into account the INSPIRE directive. The paper further investigates how the developed conceptual model, may be automatically converted to a technical model using Model Driven Architecture. Problematic issues and constraints are highlighted when applying the Model Driven Architecture approach and suggestions for resolving these issues are described. It is feasible to develop a conceptual model (country profile) which is in conformance with multiple standards, LADM and INSPIRE, because these are well aligned. Cross-boundary land administration is more than ever a very important requirement in todays’ global and European community. This is where the adoption of standards comes to play in realising the Information Infrastructure.