Affiliations: Department of Computer Engineering, Mälardalen
University, P.O. Box 883, S-721 23, Västerås, Sweden | Department of Computer Science, Linkö}ping,
University, SE-581 83 Linköping, Sweden
Abstract: Increasing complexity of real-time systems, and demands for enabling
their configurability and reusability are strong motivations for applying new
software engineering principles, such as aspect-oriented and component-based
development. In this paper we introduce a novel concept of aspectual
component-based real-time system development. The concept is based on a design
method that assumes decomposition of real-time systems into components and
aspects, and provides a real-time component model that supports the notion of
time and temporal constraints, space and resource management constraints, and
composability. Initial results show that the successful application of the
proposed concept has a positive impact on real-time system development in
enabling efficient configuration of real-time systems, improved reusability and
flexibility of real-time software, and modularization of crosscutting concerns.
We provide arguments for this by presenting an application of the proposed
concept on the design and development of a configurable embedded real-time
database, called COMET. Furthermore, using the COMET system as an example, we
introduce a novel way of handling concurrency in a real-time database system,
where concurrency is modeled as an aspect crosscutting the system.
