Holoparadigm: a multiparadigm model oriented to development of distributed systems

The multiparadigm approach integrates programming language paradigms. We have proposed the Holoparadigm (Holo) as a multiparadigm model oriented to the development of distributed systems. Holo uses a logic blackboard (called history) to implement a coordination mechanism. The programs are organized in levels using abstract entities called beings. First, we describe the principal concepts of the Holoparadigm. After, we propose the Distributed Holo (DHolo), a model to support the distributed execution of programs developed in Holo. DHolo is based on object mobility and blackboards. This distributed model can be fully implemented on the Java platform. Experiments were done using Voyager and Horb to implement mobility. Blackboards were implemented using Java and JavaSpaces.