Synchronous Estelle: Just Another Synchronous Language?

Synchronous Estelle is a new language designed to specify distributed reactive systems. We have developed this new language, that tries to merge both asynchronous and synchronous paradigms, as an answer to some problems not solved with existing techniques. We will show its syntactic and semantic features, the way to obtain executable programs according to a specification, and some hints to perform the validation of the programs written in this language. The Steam Boiler Control Problem, a referent study case in the field of reactive systems, has been used to study the applicability of Synchronous Estelle to distributed reactive systems.