Object properties in the Raven system

Raven is an object-oriented programming language and system that supports distributed and multiprocessor computing. This paper describes the motivation and design of Raven´s object property scheme. Raven properties are used to provide system services on a per-object basis. Raven is distinguishable from similar systems in several fundamental ways: the behavioral semantics of each system supported property is truly orthogonal to those of the others, allowing properties to be combined without side effects; and all properties can be assigned dynamically, in any combination, even after object creation. Property support is provided automatically by the system. This scheme provides a simple yet powerful and flexible system where every object can have the properties it requires