Land tenure studies: land tenure reform; analysis and modelling of cross-cultural tenure systems; use of traditional ecological knowledge for aboriginal land claims; survey law; cadastral surveying issues; international boundaries; women's rights in land; implications of legal pluralism for land tenure and land administration; public participation and its role in resolving land conflicts. Modelling the semantics and system behaviour of land informations systems: systems analysis and design; data base models; digital data collection and mapping; policy issues in the development and implementation of land information systems.