This paper addresses system control quality in a real-time context. Comparing the impact of sampling period reduction by a Feedback Scheduler, using three different processor utilization bounds, we stress the antinomy of control quality and schedulability. We then measure statistically the impact of scheduling artefacts (task jitters, input/output delays) to outline the main factors causing this antinomy.
SPEM is a metamodel adopted by the OMG for software processes engineering. For the software process architectures description, SPEM architectural concepts are very insufficient. Indeed, the existing concepts disallow describing configurations and explicit links specific to software process architectures and finally their deployment. The objective of this paper is to present an extension of SPEM (System and Software Process Engineering Metamodel) with lacking architectural concepts. This extension is an important step to implement a new approach for software process reusing based on software architectures.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.