Component-based Software Engineering Software Architecture Generalized Nets E-Learning Systems
Institute of Mathematics and Informatics Bulgarian Academy of Sciences
Serdica Journal of Computing, Vol. 1, No 3, (2007), 255p-266p
Component-based software engineering and software architecture
are tightly connected areas in computer science. Software architecture
presents the functionality of the system as decomposition into components,
the properties of these components and the connectors between them. This
paper illustrates a methodology for application of the theory of Generalized
Nets (GNs) as a language for description of software systems architecture.
According to this methodology, every component in the system, as well as
every connector is represented by a single GN transition. This way the
positions of the transition describe the ports of components and connectors
in the system. This paper introduces a model of the component-based
architecture of the e-learning system ARCADE, which is created, with respect
to the proposed methodology for description with GNs. The four main
subsystems are regarded as components in the GNs model. Their additional
sub-modules are presented as the services provided by the components.
Method calls are regarded as the connectors between these components.
Further, the GNs model is compared with the existing UML diagrams,
specifying the design of ARCADE.
The paper has been presented at the International Conference Pioneers of Bulgarian
Mathematics, Dedicated to Nikola Obreshko ff and Lubomir Tschakaloff , Sofi a, July, 2006.