An Interoperability Toolkit for e-Land Administration The Role of Cadastral Data Modeling Supervisors: Dr. Abbas Rajabifard Prof. Ian P. Williamson Ms. Jude Wallace

Land Administration Functions (Enemark, 2005)

Land Administration Subsystems Land Development Land Registration Valuation Mapping Public Interoperability

Victoria Referral Authorities Development Company Surveyor SPEAR Local Government Land Valuation Mapping Surveyor Referral Authority Local Governments VSCO EC Land Data Electronic process Paper process Process facilitator Related systems Major subsystems System SRO Registration Land Channel Map Public Development Company Referral Authorities Other Departments Conveyancer, Solicitors, Banks Public, other departments

New South Wales Land Development Registration Valuation Mapping Integrated Property Warehouse Internet Delivery Server Public Water and Vegetation Licensing Office of State Revenue Notice of Sale Process facilitator Related systems Major subsystems System Geospatial Portal WMS Other Departments Crown Land Information Database Electronic process Paper process e-plan Surveyor

Western Australia Next Week

Interoperability aspects in e-Land Administration Semantic Interoperability e- Land Administration e- Government Legal Interoperability Inter-community Technical Interoperability Semantic Interoperability e- Land Administration e- Government Legal Interoperability Inter-community Technical Interoperability Semantic Interoperability e- Land Administration e- Government Legal Interoperability Inter-community Technical Interoperability Semantic Interoperability e- Land Administration e- Government Legal Interoperability Inter-community Technical Interoperability Organizational Semantic interoperability represents harmonized terminology and interpretation of concepts Legal interoperability develops directives, rules, parameters and instructions for managing business work flow considering information and communication incorporation in the business Inter-community interoperability includes ensuring consideration of providing a unique portal to perform various tasks and application in land administration. Technical interoperability is the development of standard communication, exchange, modelling and storage of data information as well as access portals and interoperable web services equipped with user-friendly interfaces. Semantic Interoperability e- Land Administration e- Government Legal Interoperability Inter-community Interoperability Technical Interoperability After finding out the level of utilisation of ICT or e-LA. In any of the levels we will investigate interoperability issue based on four aspect technical, intercommunity, legal and semantic. Semantic interoperability represents harmonized terminology and interpretation of concepts as well as meaning of data. Legal interoperability develops directives, rules, parameters and instructions for managing business work flow considering information and communication incorporation in the business Inter-community interoperability includes ensuring consideration of providing a unique portal to perform various tasks and application in land administration. Which means to avoid any parallel activities Technical Interoperability is the development of standard communication, exchange, modelling and storage of data information as well as access portals and interoperable web services equipped with user-friendly interfaces Technical (Kalantari, 2005)

Interoperability Toolkit in e-Land Administration Data management tools: To facilitate and manage the development or intensification land information from multiple distributed sources. Enterprise architecture design tools: To facilitate and support development of plug-and-play Enterprise Systems and Architectures using a Web-based Foundation Access and sharing tools : To facilitate the development of a web-based access in a seamless and integrated view Decision support and exploitation tools : To facilitate decision-support applications that draw on multiple, distributed spatial data resources Cadastral Data Modelling

Reference Cadastral Data Model for Interoperable e-Land Administration Access Client Business Logic e- Land taxation Land administration subsystems Custodian e-Conveyancing Data lodgment Application Data Access Client Cadastral Database Custodian e-Land Administration Environment Business Logic e-Data lodgment e-Conveyancing e-Land taxation Cadastral Data Model The current situation of land administration processes are like this , any of the subsystems or custodians provides its own data and service separately with separate access portal and separate business logic to the clients. The role of data modelling here is to bring all the access portal together in a unique portal by providing harmonised data sharing and interoperability facility. Also it has an indirect influence in harmonising the process and bringing them together via data access interface.

Current Cadastral Data Model Land Mapping Land Registration Land Valuation Land Development User Requirements Parcel Title Property Owner

Cadastral Data Model based on the Paradigm Land Up-Surface-Under RRRs Land Mapping Land Registration Land Valuation Land Development User Requirements Parcel Parcel Title Property: Building Water Carbon …. Person: Public Natural non -Natural Property Owner Address

Various Cadastral Data Models VIC NSW WA Dutch Swiss USA Land Mapping Parcel * Property 3D Land Registration Public Natural Person Non Natural Person Rights Responsibilities Land Development Address Occupancy / Tenancy Restrictions Land Valuation Sale History Usage

Conclusion 1: Research Problem The current cadastral data model does not effectively provide interoperability among land administration subsystems and cannot facilitate delivering sustainable development.

Conclusion 2: Changing Cadastral Concept Land Use

Questions?