telecommunication services impose the challenge of building an ope service
infraestructure for supporting the distributed execution of these applications.
The rapid adoption of Internet standard is prodicing an avalanche
of new products and also the emergence of Web-based information networks
called Intranets. Software
composition helps designers cope with the construction of open systems,
such as the family of multimedia telecommunication systems (MTS). In
order to integrate multimedia services on the Web, we have constructed
a complete extensible compositional framework called MultiTEL (Multimedia
services) that tries to shorten the development time of multimedia services.
MultiTEL encapsulates an architecture of MTSs as a collection of computational
components controlled by connectors that abstract coordination patterns.
The compositional model enforces framework deployment
by the specialization of standard components, common interaction
patterns and service architecture.
MultiTEL also defines a distributed platform that supports dynamic composition
of components an connectors, by using Java/RMI
technology and the Web. In fact, MultiTEL implements a dynamic binding
method that plugs components into connectors at runtime. This makes the
system architecture more ope since there is no need to know the references
of components and connectors at compile time, facilitating the construction
of customizable services.