Integrated adaptive QoS management in middleware: a case study

• Published in: Proceedings. RTAS 2004. 10th IEEE Real-Time and Embedded Technology and Applications Symposium, 2004 pp. 276 - 285
• Main Authors: Gill, C.D., Loyall, J.P., Schantz, R.E., Atighetch, M., Gossett, J.M., Gorman, D., Schmidt, D.C.
• Format: Conference Proceeding
• Language: English
• Published: Los Alamitos CA IEEE 2004; IEEE Computer Society
• Subjects: Adaptive systems; Aerospace electronics; Applied sciences; Computer science; control theory; systems; Environmental management; Exact sciences and technology; Image analysis; Image quality; Middleware; Quality management; Quality of service; Real time systems; Technology management; Coordination; Adaptive system; Empirical method; Real time; Integrated management; Middleware; Adaptive method; Real time system; Avionics; Image quality; Boarded computer; Service quality; Quality management
• ISBN: 0769521487; 9780769521480
• ISSN: 1545-3421; 2642-7346
• DOI: 10.1109/RTTAS.2004.1317273

Distributed real-time and embedded (DRE) systems in which application requirements and environmental conditions may not be known a priori-or which may vary at run-time-can benefit from an adaptive approach to management of quality-of-service (QoS) to meet key constraints, such as end-to-end timeliness. Moreover, coordinated management of multiple QoS capabilities across multiple layers of applications and their supporting middleware can help to achieve necessary assurances of meeting these constraints. We offer two contributions to the study of adaptive DRE computing systems: (1) a case study of our integration of multiple middleware QoS management technologies to manage quality and timeliness of imagery adoptively within a representative DRE avionics system and (2) empirical results and analysis of the impact of that integration on key tradeoffs between timeliness and image quality in that system.