Tan Liat Choon

Conceptual Modelling of 3D Cadastre and LADM

The cadastral registration system in Malaysia is a parcel based system and it is 2D in nature (Chong 2006; Hassan and Abdul Rahman 2010; Abdul Rahman et al. 2011). This system of cadastral information has served most of the users need for decades. However, in the near future, 2D information may no longer be able to serve the community, especially in more complex situations such as buildings above roads in some large cities and towns. Three dimensional (3D) modelling of cadastral objects such as legal spaces of around buildings, utility networks and other spaces is one of the future aspects for the Malaysian cadastral system. The Malaysian 3D cadastral model could be developed within the framework of the Land Administration Domain Model (LADM) where the generation of the UML model that complies with the concept of LADM for the Malaysian cadastral system can be addressed. The purpose of the LADM is not to replace existing systems, but rather to provide a formal language for describing various sub-systems, so that their similarities and differences can be better understood (ISO 19152 2012).