An object-oriented geographical modeling system

This paper describes a geographical modeling system (GMS) that provides users with the atomic objects and object managers needed to construct sophisticated spatial simulation models. As such, the system provides a digital environment in which spatial knowledge can be stored and managed, theory can be modeled and tested, and alternative resource management strategies can be evaluated. To develop this system we used object-oriented analysis and design methods to integrate modelbase management and geographic information system technologies into a single system.