Layered architecture of multiple programming language system for multiparadigm programming

A layered architecture that can provide a unified environment for multiparadigm programming on sequential processors is described. The architecture gives open-endedness to a system for programming in multiple languages based on multiple paradigms. Language-specific constructs such as control structures and variable definitions are given in an upper layer. Lower layers describe concepts common to all languages, such as data types and reference protocols. Since communication among languages is handled in the lower layers, the upper layers provide an open-ended abstraction for multiparadigm programming