Visualization requirements for 3D cadastral systems

A number of existing 3D visualization systems were evaluated against the identified features. Following this analysis, a prototype 3D visualization system was designed and implemented. Then, a case study was conducted to evaluate the performance of the developed system and this was presented to industry representatives through a workshop. Not all needs were met; for example, those involved in land registry sought greater support for validation of 3D spatial units. However most agreed that the prototype system is able to facilitate understanding of ownership boundaries. Using this feedback, our proposed features were reviewed according to the tasks and requirements of different users.