@article {Ettazi2022117,
	title = {Design patterns for building context-aware transactional services in PaaS-enabled systems},
	journal = {International Journal of Web Engineering and Technology},
	volume = {17},
	number = {2},
	year = {2022},
	note = {cited By 0},
	pages = {117-143},
	abstract = {Pervasive computing is characterised by a key feature that affects the operating environment of services and users. It places more emphasis on dynamic environments where available resources continuously vary without prior knowledge of their availability, while in static environments the services provided to users are determined in advance. At the same time, cloud computing paradigm introduced flexibility of use according to the user{\textquoteright}s profile and needs. In this paper, we aimed to provide context-aware transactional service (CATS) applications with solutions so that it can be integrated and invoked like any service in the digital ecosystem. The motivation in this paper is to offer design patterns that will guarantee short reaction times and minimal human intervention. Our proposal includes a cloud service model by developing a PaaS service that allows CATS adaptation. A new specification for the validation of CATS model has been also introduced using the ACTA formalism. Copyright {\textcopyright} 2022 Inderscience Enterprises Ltd.},
	keywords = {ACTA, Cloud service models, Context- awareness, Context-Aware, Design Patterns, Distributed database systems, Key feature, ON dynamics, Operating environment, Paa, Platform as a Service (PaaS), Transactional service, Ubiquitous computing},
	doi = {10.1504/IJWET.2022.125651},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140992267\&doi=10.1504\%2fIJWET.2022.125651\&partnerID=40\&md5=60e1ee1cdbc8c6f1ce2d9b93a7d6fa0f},
	author = {Ettazi, W. and Hafiddi, H. and Nassar, M.}
}
@article {Guermah2021110,
	title = {Dealing with context awareness for service-oriented systems: An ontology-based approach},
	journal = {International Journal of Service Science, Management, Engineering, and Technology},
	volume = {12},
	number = {4},
	year = {2021},
	note = {cited By 1},
	pages = {110-131},
	abstract = {In recent years, rapid advances in the enabling technologies for mobile and ubiquitous computing, software paradigms, embedded sensor technologies, and wide range of wired and wireless protocols have been witnessed. Specifically, context-aware services-oriented applications are emerging as the next computing paradigm in which infrastructure and services are seamlessly available. Contextawareness, being an important ingredient, plays a vital role in enabling such interactive smart environments. More recently, the increasing popularity of ontologies has led to new ontology-based models of context because of their potential to support sophisticated ontology-based reasoning methods. This paper presents an architecture for the development of context-aware services based on ontologies. The authors highlight the context metamodel and discuss about reasoning process. This research also presents the semantic approach for service adaptation in context aware environment. Copyright {\textcopyright} 2021, IGI Global.},
	doi = {10.4018/IJSSMET.2021070107},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85108948717\&doi=10.4018\%2fIJSSMET.2021070107\&partnerID=40\&md5=57712a52da5717426a70263e22f08eea},
	author = {Guermah, H. and Guermah, B. and Fissaa, T. and Hafiddi, H. and Nassar, M.}
}
@article {Daosabah2021324,
	title = {Dynamic composition of services: an approach driven by the user{\textquoteright}s intention and context},
	journal = {International Journal of Web Engineering and Technology},
	volume = {16},
	number = {4},
	year = {2021},
	note = {cited By 1},
	pages = {324-354},
	abstract = {With the continuous development of services in ubiquitous systems, service orientation is becoming increasingly important in its structuring. As a result, the design and the development of applications are gradually migrating from a traditional model to a service-oriented model. In this regard, we propose through this work an approach for web service (WS) composition guided by the context and the intention, by which we suggest an architecture for service composition that reduces the complexity of the generated artificial intelligence (AI) planning problem and to ensure the interoperability of any system independently of the domain planners. The general idea of this approach is to conceive an intentional-contextual metamodel that will be transformed into an OWL model using OMG standards, which will be used to map the WS composition problem into AI planning problems. This article describes the architectural, conceptual, and strategic aspects to deal with the WS composition problem. {\textcopyright} 2021 Inderscience Enterprises Ltd.},
	keywords = {Artificial intelligence, Birds, Context- awareness, Intention, interoperability, Object management, Object management group, OMG, Ontology{\textquoteright}s, OWL-S, Quality of service, Services composition, Spring cloud framework, Web service composition, Web services},
	doi = {10.1504/IJWET.2021.122768},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124011575\&doi=10.1504\%2fIJWET.2021.122768\&partnerID=40\&md5=f9387d7a26ae641892da27f98947542d},
	author = {Daosabah, A. and Guermah, H. and Nassar, M.}
}
@article {Laghouaouta2017142,
	title = {A dedicated approach for model composition traceability},
	journal = {Information and Software Technology},
	volume = {91},
	year = {2017},
	note = {cited By 0},
	pages = {142-159},
	abstract = {Context: Software systems are often too complex to be expressed by a single model. Recognizing this, the Model Driven Engineering (MDE) proposes multi-modeling approaches to allow developers to describe a system from different perspectives. In this context, model composition has become important since the combination of those partial representations is inevitable. Nevertheless, no approach has been defined for keeping track of the composition effects, and this operation has been overshadowed by model transformations. Objective This paper presents a traceability approach dedicated to the composition of models. Two aspects of quality are considered: producing relevant traces; and dealing with scalability. Method The composition of softgoal trees has been selected to motivate the need for tracing the composition of models and to illustrate our approach. The base principle is to augment the specification of the composition with the behavior needed to generate the expected composed model accompanied with a trace model. This latter includes traces of the execution details. For that, traceability is considered as a crosscutting concern and encapsulated in an aspect. As part of the proposal, an Eclipse plug-in has been implemented as a tool support. Besides, a comparative experiment has been conducted to assess the traces relevance. We also used the regression method to validate the scalability of the tool support. Results Our experiments show that the proposed approach allows generating relevant traces. In addition, the obtained results reveal that tracing a growing number of elements causes an acceptable increase of response time. Conclusion This paper presents a traceability approach dedicated to the composition of models and its application to softgoal trees. The experiment results reveal that our proposal considers the composition specificities for producing valuable traceability information while supporting scalability. {\textcopyright} 2017 Elsevier B.V.},
	doi = {10.1016/j.infsof.2017.07.002},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021928111\&doi=10.1016\%2fj.infsof.2017.07.002\&partnerID=40\&md5=efd71b14c98f0091be2f0f61bbb50a3f},
	author = {Laghouaouta, Y. and Anwar, A. and Nassar, M. and Coulette, B.}
}
