One of the current challenges of Information Systems is to ensure semi-structured data transmission, such as multimedia data, in a distributed and pervasive environment. Information Sytems must then guarantee users a quality of service ensuring data accessibility whatever the hardware and network conditions may be. They must also guarantee information coherence and particularly intelligibility that imposes a personalization of the service. Within this framework, we propose a design method based on original models of multimedia applications and quality of service. We also define a supervision platform Kalinahia using a user centered heuristic allowing us to define at any moment which configuration of software components constitutes the best answers to users' wishes in terms of service.
Nowadays, many researchers work to identify microservices-based application deployments and scheduling solutions to save energy without decreasing functional QoS. In this work, we present DRACeo: A simulator that allows facing this challenge in a simple and efficient way, enabling its users to focus uniquely on microservices deployment/scheduling algorithms and its hardware/software repercussions (load vs. energy consumption) without worrying about low-level network configurations or operating system issues. DRACeo is able to deploy and schedule (move, duplicate, start/stop) microservices and their dependencies on various devices with software and hardware heterogeneity (CPU, bandwidth, RAM, Battery, etc.), taking into account various scheduling heuristics algorithms: centralized vs noncentralized. To do this, DRACeo allows deploying custom network topologies based on client-server schemes or p2p distributions, where devices can (dis)appear, turn on/off obeying random circumstances or user strategies. Finally, the simulator performs relevant operations such as QoS definition, resource monitoring, calculation of energy saved and consumption tracking (at device and network level). We tested some ideas based on our previous work "Kaligreen" to demonstrate the effectiveness of DRACeo.
This paper presents a software platform (called Kalimucho) for mobile and embedded hardware. The architecture of such application is based on two component models: Osagaia for software containers and Korrontea for connector containers. Kalimucho uses service factory permitting the creation of instances of software components. This factory allows making the most suitable configuration according to services decision managing reconfiguration. The reconfiguration service decisions depend on data sent by control interfaces and the users defined rules (via the platform and control interfaces).
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Aujourd'hui, il y a une grande variété d'applications mobiles de premiers secours pour les appareils Android et iOS pour aider les utilisateurs en situations dangereuses. Cependant, leur utilisation massive est limitée en raison de plusieurs aspects, tels que l'interaction complexe pour l'utilisateur ou le besoin d'appareils spéciaux pour l'identification médicale. Pour trouver une solution au problème décrit précédemment, nous adoptons une approche basée sur les interactions proxémiques. Dans ce contexte, nous proposons une premier Application de secours mobile (FAMA) basée sur l'interaction Proxémique, développé avec Bluetooth à basse consommation (BLE) et la balise (Beacon) technologie. Dans la première évaluation, nous décrivons les aspects et les défis liés au développement de FAMA.Ces résultats démontrent l'avantage de l'utilisation de l'interaction proxémique pour mettre en oeuvre l'IHM, dans le contexte de l'urgence et des services de secours, en termes de meilleure performance et d'accessibilité, par rapport aux applications mobiles de premiers soins existantes. Mots ClésInteractions proxémiques; beacon; applications mobiles.
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