This paper proposes a new logic programming language called GOLOG whose interpreter automatically maintains an explicit representation of the dynamic world being modeled, on the basis of user supplied axioms about the preconditions and e ects of actions and the initial state of the world. This allows programs to reason about the state of the world and consider the e ects of various possible courses of action before committing to a particular behavior. The net e ect is that programs may be written at a much higher level of abstraction than is usually possible. The language appears well suited for applications in high level control of robots and industrial processes, intelligent software agents, discrete event simulation, etc. It is based on a formal theory of action speci ed in an extended version of the situation calculus. A prototype implementation in Prolog has been developed.
As an implementation tool built over SC, the GOLOG logic programming language has been developed REF .
GOLOG: A Logic Programming Language for Dynamic Domains
Journal of Logic Programming
Computer Science