@conference {Bounagui2016,
	title = {Requirements definition for a holistic approach of cloud computing governance},
	booktitle = {Proceedings of IEEE/ACS International Conference on Computer Systems and Applications, AICCSA},
	volume = {2016-July},
	year = {2016},
	note = {cited By 0},
	abstract = {With the appearance of virtualization, the spread of internet, the development of broadband networks, and also the advent of externalization and application rental; cloud computing (CC) has emerged as being the next generation of distributed computing paradigm. Based on {\textquoteright}pay-for-what-you-use{\textquoteright} model, CC offers significant benefits including costs reduction, on demand provisioning, rapid elasticity, resources pooling, etc. But despite all its potential gains, the model also introduces many challenges from which the major concern that hampers its adoption is the lack of an integrated approach for CC governance. With regard to this matter, the main contributions of this paper is first, to analyze the existing standards and research works considering different aspects of IT governance; and second, to identify, analyze, and organize the main CC governance requirements that constitute the cornerstone for the development of an integrated approach for CC governance. {\textcopyright} 2015 IEEE.},
	doi = {10.1109/AICCSA.2015.7507245},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84980328080\&doi=10.1109\%2fAICCSA.2015.7507245\&partnerID=40\&md5=abde0b8a81646802c167b52fb4e581d1},
	author = {Bounagui, Y.a and Hafiddi, H.a b and Mezrioui, A.a}
}
@conference {Fissaa2016,
	title = {Towards a semantic approach for discovering context aware services},
	booktitle = {Proceedings of IEEE/ACS International Conference on Computer Systems and Applications, AICCSA},
	volume = {2016-July},
	year = {2016},
	note = {cited By 0},
	abstract = {The current service discovery mechanisms are syntactic methods that often offer poor quality results. By researching this area we are able to identify issues that limit the quality of the result with these traditional service mechanisms. To overcome this issue we use ontologies to enable semantic matchmaking. By reasoning on concepts and relations, our approach can derive matches that syntactically would not match. Additionaly, by introducing contextual information in the service discovery process, the quality of the service discovery result may improve. In this paper, we present an overview of the architecture for the discovery of context aware services by using ontologies, we also present our context aware semantic service by extending OWL-S with context properties. {\textcopyright} 2015 IEEE.},
	doi = {10.1109/AICCSA.2015.7507223},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84980335938\&doi=10.1109\%2fAICCSA.2015.7507223\&partnerID=40\&md5=4b536162f82df5902d0c9e87e0681fa3},
	author = {Fissaa, T.a and Guermah, H.a and Hafiddi, H.a b and Nassar, M.a}
}
@conference {Ettazi2015,
	title = {A cloud-based architecture for transactional services adaptation},
	booktitle = {Proceedings of 2015 International Conference on Cloud Computing Technologies and Applications, CloudTech 2015},
	year = {2015},
	note = {cited By 0},
	abstract = {Advances in wireless communications and mobility have increased the use of smart mobile applications. As a result of the remarkable increase of mobile devices and the pervasive wireless networks, a large number of mobile users are requiring personalization services customized to their context. The mobile cloud-computing paradigm from a context-aware perspective aims to find effective ways to make cloud services aware of the context of their customers and applications. Another major challenge for context-aware cloud services is to exploit the benefits of cloud computing to manage transaction processing throughout the life cycle of a service. In this paper, we focused on the need of loosely coupled context-supporting components that work with a transaction-aware service infrastructure to adapt services to the context of the user and his mobile device. We propose a cloud-based middleware for transactional service adaptation (CM4TSA) by adding the "Adaptation as a Service" layer into basic cloud architecture, to perform the correct execution of transactional service according to the user context. {\textcopyright} 2015 IEEE.},
	doi = {10.1109/CloudTech.2015.7336966},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962915570\&doi=10.1109\%2fCloudTech.2015.7336966\&partnerID=40\&md5=3023f7d2f3c981e241c1581a30e547c6},
	author = {Ettazi, W.a and Hafiddi, H.a b and Nassar, M.a and Ebersold, S.c}
}
@conference {Fissaa2015640,
	title = {How can semantics and context awareness enhance the composition of context-aware services?},
	booktitle = {ICEIS 2015 - 17th International Conference on Enterprise Information Systems, Proceedings},
	volume = {2},
	year = {2015},
	note = {cited By 0},
	pages = {640-647},
	abstract = {The context-aware services refers to applications that use so-called contextual information to provide appropriate services or relevant information to the user or other applications to perform a specific task. An important challenge in context-aware service oriented systems is the creation of a new service on demand to carry out more complex tasks through the composition of existing services. In this work, we aim to propose a semantic based architecture for the development of context aware services composition using Artificial Intelligence (AI) planning. The straightforward translation between AI planning through PDDL and Semantic web services via OWL-S allows to automate the composition process. Thus planning based service composition launches a goal-oriented composition procedure to generate a plan of composite service corresponding to the user request. Copyright {\textcopyright} 2015 SCITEPRESS - Science and Technology Publications.},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84939560458\&partnerID=40\&md5=0a9e2c87038f1d032ffe405577e99b17},
	author = {Fissaa, T.a and Guermah, H.a and Hafiddi, H.a b and Nassar, M.a}
}
@article {Ettazi2015496,
	title = {Micats: Middleware for context-aware transactional services},
	journal = {Lecture Notes in Business Information Processing},
	volume = {241},
	year = {2015},
	note = {cited By 0},
	pages = {496-512},
	abstract = {In context-aware service-based environments, fulfilling user{\textquoteright}s recommendations bring about several challenges that are mainly due to the dynamic nature and limited underlying resources of these environments. In this paper, we mainly focus on the transactional aspects of context-aware services. To cope with the aforementioned issues, we opt for a middleware-based solution (MiCATS). We therefore present our novel approach for managing context-aware transactions which allows for adaptation to the requirements of applications and mobile context in terms of transactional properties. Then, we introduce our context-aware transactional service model (CATSM) and a context-aware architecture based on adaptation policies. The proposed contributions are implemented within a middleware platform. {\textcopyright} Springer International Publishing Switzerland 2015.},
	doi = {10.1007/978-3-319-29133-8_24},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959010651\&doi=10.1007\%2f978-3-319-29133-8_24\&partnerID=40\&md5=c56c8ed710503318e5bb541d36315897},
	author = {Ettazi, W.a and Hafiddi, H.a b and Nassar, M.a and Ebersold, S.c}
}
@conference {Aouzal2015,
	title = {An overview of variability management in cloud services},
	booktitle = {Proceedings of 2015 International Conference on Cloud Computing Technologies and Applications, CloudTech 2015},
	year = {2015},
	note = {cited By 0},
	abstract = {The Cloud Computing paradigm has enabled the multi-tenancy architectural approach in Cloud applications. In a multi-tenant application, one single instance is shared by many tenants (users). Since each client has its own and particular requirements and context, that are exposed to change in time, the process of realizing customizable and adaptable services becomes complex and difficult to handle. Handling variability has been subject of many research works in the domain of Service Oriented Computing, while less interest was given to variability in Cloud services. Therefore, managing variability in Cloud applications can take benefit from related works in service-oriented computing. In this paper, we present an overview of variability management in Cloud applications, in order to assess the pertinence of the different approaches proposed to tackle this issue. {\textcopyright} 2015 IEEE.},
	doi = {10.1109/CloudTech.2015.7336976},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962861131\&doi=10.1109\%2fCloudTech.2015.7336976\&partnerID=40\&md5=08685792a476e627b2fe63ca5f3f1d63},
	author = {Aouzal, K.a and Hafiddi, H.a b and Dahchour, M.a}
}
@conference {Ettazi2015553,
	title = {Towards a context-aware adaptation approach for transactional services},
	booktitle = {ICEIS 2015 - 17th International Conference on Enterprise Information Systems, Proceedings},
	volume = {2},
	year = {2015},
	note = {cited By 0},
	pages = {553-562},
	abstract = {One goal of ubiquitous computing is to enable users to access and perform transactions from any location, at any time and from any device. In a context-aware environment, transaction management is a critical task that requires a dynamic adaptation to the changing context in order to provide service reliability and data consistency. In this paper, we propose a new approach for managing context-aware transactional services. Then we discuss the various researches that have addressed this issue. Finally, we propose a new model for the adaptability of context-aware transactional services called CATSM (Context-Aware Transactional Service Model) and the adaptation mechanisms to implement this model. Copyright {\textcopyright} 2015 SCITEPRESS - Science and Technology Publications.},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84939533791\&partnerID=40\&md5=c938ca86129c8fc5a5d5f6d0b73d993e},
	author = {Ettazi, W.a and Hafiddi, H.a b and Nassar, M.a and Ebersold, S.c}
}
@article {Ettazi2015479,
	title = {A user centered design approach for transactional service adaptation in context aware environment},
	journal = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)},
	volume = {9466},
	year = {2015},
	note = {cited By 0},
	pages = {479-484},
	abstract = {Today, information systems are radically marked by considerable progress in the areas of software engineering, telecommunications and ubiquitous computing. This has led to the development of new interaction pattern where the service oriented architecture is the de facto pattern. In this article, we are particularly interested in transactional services. We position our approach in the context of a user-centered model driven engineering (MDE) approach in order to move from one perspective where models were contemplative artifacts to a perspective where they become productive artifacts. For this, we first present our approach for managing context-aware transactional services (CATS). Then, we propose a CATS specification and metamodel. The adaptation mechanism is also detailed in this paper. {\textcopyright} Springer International Publishing Switzerland 2015.},
	doi = {10.1007/978-3-319-26850-7_35},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84961168931\&doi=10.1007\%2f978-3-319-26850-7_35\&partnerID=40\&md5=161ddb896204ff4729d19420302d0566},
	author = {Ettazi, W.a and Hafiddi, H.a b and Nassar, M.a}
}
@conference {Bounagui2014,
	title = {Challenges for IT based cloud computing governance},
	booktitle = {2014 9th International Conference on Intelligent Systems: Theories and Applications, SITA 2014},
	year = {2014},
	note = {cited By 0},
	abstract = {For some years now, the concept of Cloud Computing (CC) is presented as the new revolution of information technology. It presents not only a technical innovation for better IT system flexibility, improvement of working methods and cost control, but also a new economic model, built around the concept of IT Services that are identifiable, classifiable and countable for end users, who can benefit by paying for use without having to make huge investments. In this paper, we show that despite these advantages, the implementation of such a concept has an impact on the enterprise stakeholders (IT Direction, Business Direction, Suppliers Direction, etc.). Many aspects must be managed differently from traditional systems. Availability, security, privacy and compliance are just some of the aspects that must be monitored and managed more effectively. Thus, the IT based CC governance is a necessity in terms of defining good management practices, especially because there is a lack of an adapted Governance Framework. The current IT governance practices/standards (ITIL, COBIT, ISO2700x, etc.) still have many limitations: they are far from covering an {\textquoteright}end-to-end{\textquoteright} governance; they are difficult to use and to maintain and have many overlapping points. It becomes mandatory for companies to address these challenges and control the capabilities offered by the CC, develop cloud oriented policies that reflect their exact needs and to have a flexible, coherent and global IT based CC Governance Framework. {\textcopyright} 2014 IEEE.},
	doi = {10.1109/SITA.2014.6847289},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904638805\&doi=10.1109\%2fSITA.2014.6847289\&partnerID=40\&md5=de0dd2a4210b805d1ae83c7e790998e6},
	author = {Bounagui, Y.a and Hafiddi, H.a b and Mezrioui, A.a}
}
@conference {Guermah2013,
	title = {Context modeling and reasoning for building context aware services},
	booktitle = {Proceedings of IEEE/ACS International Conference on Computer Systems and Applications, AICCSA},
	year = {2013},
	note = {cited By 1},
	abstract = {The rapid evolution of software paradigms, wireless technologies and mobile devices induced the emergence of new applications called context-aware services oriented applications. Such applications provide appropriate services or relevant information to the user or other applications to perform a specific task. An important challenge in such applications development process is context modeling and reasoning. Ontology based models presents the most promising instrument for context modeling and offers possibility of applying ontology reasoning techniques. the aim of context reasoning is converting low-level context to highlevel context in order to provide costumized services to users. In this paper, we present an architecture for the development of context aware services based on ontologies. We also highlight our context metamodel and discuss about reasoning process for e-health systems. {\textcopyright} 2013 IEEE.},
	doi = {10.1109/AICCSA.2013.6616439},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887225025\&doi=10.1109\%2fAICCSA.2013.6616439\&partnerID=40\&md5=7ca7da696e2d53b254ab9b4b909c71e7},
	author = {Guermah, H.a and Fissaa, T.a and Hafiddi, H.a b and Nassar, M.a and Kriouile, A.a}
}
@conference {Fissaa201343,
	title = {Ontology based context modeler for context-aware systems},
	booktitle = {Proceedings - IEEE 6th International Conference on Service-Oriented Computing and Applications, SOCA 2013},
	year = {2013},
	note = {cited By 0},
	pages = {43-47},
	abstract = {In ubiquitous computing, context-aware service oriented systems refer to applications that use so-called contextual information to provide appropriate services or relevant information to the user or other applications to perform a specific task. An important challenge in such applications is context modeling, using ontologies to model context information and to reason about context at a semantic level has attracted a lot of interest in the research community. However, most of the presented approaches do not usually take into account any software engineering method. Therefore, employing standard approaches to formulate the development process becomes of importance. In this paper, we present an overview of the architecture for the development of context aware services based on ontologies, we also present our context modeler based on ODM (Ontology Definition Metamodel) and model transformations that allows to generate an OWL ontology representing context information. {\textcopyright} 2013 IEEE.},
	doi = {10.1109/SOCA.2013.58},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894175652\&doi=10.1109\%2fSOCA.2013.58\&partnerID=40\&md5=7f367b0af0c55bcbc35014d583c37455},
	author = {Fissaa, T.a and Guermah, H.a and Hafiddi, H.a b and Nassar, M.a and Kriouile, A.a}
}
