Advances and Challenges for Model and Data Engineering

Following the stimulating discussions in workshops held during 9th International Conference on Model and Data Engineering (MEDI 2019), we proposed to edit a special issue compiling fruitful research resulting from those discussions. This current model data engineering of Journal Universal Computer Science is outcome that proposal. As such, it contains thoroughly revised significantly extended versions key papers discussed at MEDI 2019 workshops. The main objective provide forum for dissemination accomplishments promote interaction collaboration between models communities. provides an international platform pre- sentation theory, development advanced technologies related their applications. scientific event, initiated by researchers Euro-Mediterranean countries 2011, aims also promoting creation north-south networks, projects faculty/student exchanges. following seven accepted nicely reflect wide range topics covered conferences. In paper “Enhancing GDPR Compliance Through Sensitivity Hiding Tools”, Xabier Larrucea, Micha Moffie Dan Mor consider problem fulfilling rules set General Protection Regulation (GDPR) EU within framework reference architectural industry 4.0 healthcare sector. challenging due highly sensitive managed this sector need share different national providers EU. authors propose implement series valuable tools enhance security privacy context as well compliance with GDPR. They illustrate through case study use sharing health records integration framework. “BSO-MV: An Optimized Multiview Clustering Approach Items Recommendation Social Networks”, Lamia Berkani, Lylia Betit Louiza Belarif present new approach improve accuracy coverage clustering based recommendations systems social networks. improving results multiview combining bees swarm optimization algorithm. extensive experimentation two real-world datasets, they are able demonstrate effectiveness accuracy, outperforming others clustering-based approaches. “A Formal Configurable Business Process Optimal Cloud Resource Allocation”, Abderrahim Ait Wakrime, Souha Boubaker, Slim Kallel, Emna Guermazi Walid Gaaloul formal analyse verify con- figurable business process optimize cost implementation Cloud. mechanism consists transforming into equivalent Boolean satisfiability (SAT) which then feed solver. transformation done means translation configurable processes SAT. formalizes behaviors including control-flow cloud resource allocations, enabling derivation correct configuration variants. Weighted partial SAT formulae integrated order global allocation cost. “Towards Semantic Graph-based Recommender System: A Case Study Cultural Heritage”, Sara Qassimi El Hassan Abdelwahed semantic graph-based recommender system cultural heritage places. Their first constructing emergent description semantically augments information about places interest graphs relationships similar associated tags. Note unsuper- vised nature folksonomy’s tags weakens resources, turn hinders indexing decreases quality classification clustering. augmentation produced method Marrakesh city shows be effective tool fight overload produce better context. presents contribution can used general. “Assembling Web Things Microservices Management Cyber-Physical Systems”, Manel Mena, Javier Criado, Luis Iribarne Antonio Corral face challenge facilitating communication diverse devices protocols Systems (CPS) Internet (IoT). concept digital dice (an abstraction various objects). builds web things standard. It microservices capable handling virtualization IoT devices. work introduces technique build, transform compose dices descriptions “things”. full flow presented its implementation. proposal shown flexible, state art. “Model-Driven End-Users Loop Smart Ambient Sylvie Trouilhet, Jean-Paul Arcangeli, Jean-Michel Bruel Maroun Koussaifi Model-Driven (MDE) involve user run time component applications, adapted situation needs, ambient systems. solution relies several domain-specific languages process, established MDE (Gemoc Studio, Eclipse Modeling Framework, EcoreTools, Sirius Acceleo). context, describe innovative way reinforcing place loop. editor allows end aware emerging applications understand function and use, modify them if desired. From these actions, feedback extracted process. “An Testing False Injection Attack Depen- dent Industrial Devices”, Mathieu Briland Fabrice Bouquet domain specific language (DSL) generating test devices/environments. DSL testing simulating false injection attacks (FDIA). First, outlines generic FDIA list possible sensor types categorization schema obtained sensors. Then, application illustrated using examples; simple one altering temperature more complex concurrently three particle show works Flowbird parking meter discuss how domains. We grateful all journal articles issue, who contributed fine collection engineering. would like express our greatest thanks reviewers, put lot reading making substantial suggestions improvement, led high quality. thank J.UCS evaluation committee opportunity publish particular publishing managers Dana Kaiser Johanna Zeisberg timeless assistance whole Last but not least, acknowledge host institutions, University Nantes Software Competence Center Hagenberg (SCCH) support sponsoring issue. particular, Prof. Yamine Ait-Ameur institute IRIT/INP-ENSEEIHT have collaborated COMET partnership agreement SCCH, supported confer- ence originated. Christian Attiogbé, Flavio Ferrarotti Sofian Maabout (July, 2021)