Research Topics
My current research works are concentrated on the Quality of Service (QoS) management of SOA and Cloud Computing. Cloud Computing is a technology that provides on-demand access to massively scalable resources in the field of Service Computing. This new technology has emerged as a new paradigm for deploying, managing and offering services through a shared infrastructure. Maintaining QoS is important for this kind of service-based applications. It requires the ability to deal with permanently changing constraints at many levels (Infrastructure, Platform, Service). Repairing QoS degradation also requires the capacity of identifying its possible or actual sources and the capacity of reconfiguration decision and enforcement. Dealing with these issues is especially challenging for Cloud Computing-based application since the self-healing solution has to preserve the dynamic composition property and to be seamless for the service requesters, while being always usable under the different deployment constraints.

Master's thesis
A Dynamic QoS Reference Model Generation for Analysis of Web Services-based Applications

Organization Committee Member of:
- METHODICA-I'2009: The 4th workshop on Methods for the Adaptive Distributed Software.

Publications

[1] Afef Mdhaffar, Riadh Ben Halima, Ernst Juhnke, Mohamed Jmaiel, and Bernd Freisleben. AOP4CSM: An Aspect-Oriented Programming Approach for Cloud Service Monitoring. In Proceedings of the 11th IEEE International Conference on Computer and Information Technology, pages 363 - 370. IEEE Press, 2011. [ BibTeX | DOI ]

[2] Afef Mdhaffar, Soumaya Marzouk, Riadh Ben Halima, and Mohamed Jmaiel. A Runtime Performance Analysis for Web Service-Based Applications. In F. Daniel and F.M. Facca (Eds.), editors, Current Trends in Web Engineering, volume 6385 of Lecture Notes in Computer Science. 1st Workshop on Engineering SOA and the Web (ESW‘2010) Held in conjunction With the 10th International Conference on Web Engineering (ICWE’2010), 2010 Proceedings, pages 313-324. Springer-Verlag Berlin Heidelberg, Vienna, Austria, July 2010. [ BibTeX | DOI ]

Teaching activities

• 2009 - 2010: Faculty of Economics and Management of Sfax, Tunisia
       -Web services and Internet Applications (XML, DTD, XSD - Web Service, WSDL, SOAP, UDDI)
      -Object oriented programming
• 2008 - 2009: National School of Engineering of Sfax, Tunisia
      -Languages and techniques of Internet
      -Artificial Intelligence and Expert Systems