Event-based Spatio-temporal Database Design for Land Subdivision System
Jie Jiang · PolyU Institutional Research Archive (Hong Kong Polytechnic University) · 2000
The spatio temporal database for a collaborative decision making system supporting land subdivision is “event driven”. Both various states of spatial objects and the events cause the objects change need to be recorded and manipulated. To achieve this, the authors analyzed the characteristics of events in land subdivision process and studied how events affect the states of spatial objects. An approach was proposed to represent the land subdivision process and a formal specification language was introduced to describe the execution of event sequence. With this approach, the causal relations between events and states can be recorded and managed in the spatio temporal database in a land subdivision system. And a new way for simulating system work flow was also found.