Local coordination for interpersonal communication systems [Elektronische Ressource] / von Dirk Kutscher

Local Coordinationfor Interpersonal Communication Systemsvon Dirk KutscherDissertationzur Erlangung des Grades eines Doktors der Ingenieurwissenschaften– Dr. Ing. –Vorgelegt im Fachbereich 3 (Mathematik & Informatik)der Universitat¨ Bremenim August 2003Datum des Promotionskolloquiums: 22.10.2003¨Gutachter: Prof. Dr Ing. Ute Bormann (Universitat Bremen)Prof. Peter T. Kirstein (University College London)AbstractThe decomposition of complex applications into modular units is an acknowledged designprinciple for creating robust systems and for enabling the flexible re use of modules in newapplication contexts. Typically, component frameworks provide mechanisms and rules for de veloping software modules in the scope of a certain programming paradigm or programminglanguage and a certain computing platform. For example, the JavaBeans framework is a compo nent framework for the development of component based systems — in the Java environment.In this thesis, we present a light weight, platform independent approach that views acomponent based application as a set of rather loosely coupled parallel processes that can bedistributed on multiple hosts and are coordinated through a protocol. The core of our frame work is the Message Bus (Mbus): an asynchronous, message oriented coordination protocolthat is based on Internet technologies and provides group communication between applicationcomponents.