Context Aware Mobile Application Architecture (CAMAA) for Health Care systems : standardization and abstraction of context aware layers

Context awareness was introduced recently in several fields in quotidian human activities. Among context aware applications, health care systems are the most important ones. Such applications, in order to perceive the context, rely on sensors which maybe physical or virtual. However, these applications lack of standardization in handling the context and the perceived sensors data. In this work, we propose a formal context aware application architecture model to deal with the context taking into account the scalability and interoperability as key features towards an abstraction of the context relatively to end user applications. As a proof of concept, we present also a case study and simulation explaining the operational aspect of this architecture in health care systems

Model-based fleet deployment in the IoT–edge–cloud continuum

With the increasing computing and networking capabilities, IoT devices and edge gateways have become part of a larger IoT–edge–cloud computing continuum, where processing and storage tasks are distributed across the whole network hierarchy, not concentrated only in the cloud. At the same time, this also introduced continuous delivery practices to the development of software components for network-connected gateways and sensing/actuating nodes. These devices are placed on end users’ premises and are characterized by continuously changing cyber-physical contexts, forcing software developers to maintain multiple application versions and frequently redeploy them on a distributed fleet of devices with respect to their current contexts. Doing this correctly and efficiently goes beyond manual capabilities and requires an intelligent and reliable automated solution. This paper describes a model-based approach to automatically assigning multiple software deployment plans to hundreds of edge gateways and connected IoT devices implemented in collaboration with a smart healthcare application provider. From a platform-specific model of an existing edge computing platform, we extract a platform-independent model that describes a list of target devices and a pool of available deployment plans. Next, we use constraint solving to automatically assign deployment plans to devices at once with respect to their specific contexts. The result is transformed back into the platform-specific model and includes a suitable deployment plan for each device, which is then consumed by our engine to deploy software components not only on edge gateways but also on their downstream IoT devices with constrained resources and connectivity. We validate the approach with a fleet deployment prototype integrated into a DevOps toolchain used by the partner application provider. Initial experiments demonstrate the viability of the approach and its usefulness in supporting DevOps for edge and IoT software development.publishedVersio

SAMI, Services d'assistance mobiles et intelligents

Au Canada, le nombre de personnes atteintes de troubles cognitifs n'est pas négligeable et les conséquences de ces troubles sur les activités de la vie quotidienne (AVQ) de ces personnes sont dramatiques. Suivant la sévérité des troubles, les personnes sont capables de réaliser leurs activités avec quelques difficultés ou sont totalement incapables de les faire, ce qui conduit souvent au placement de ces personnes dans des centres spécialisés. Ce placement, ainsi que le suivi de ces personnes, sont particulièrement onéreux pour la société. Pour cette raison, les gouvernements visent à favoriser des solutions de maintien à domicile. Une des pistes de solutions est de fournir aux personnes atteintes de troubles cognitifs un ensemble de services d'assistance technologiques, disponibles en tout temps et en tous lieux, capables de s'adapter aux différents outils technologiques présents dans l'environnement pour offrir une assistance continue. L'objectif de cette thèse est de concevoir une telle solution d'assistance en menant une recherche sur deux axes entrecroisés. Le premier axe concerne les solutions d'assistance d'un point de vue technologique, le second les aborde d'un point de vue plus clinique. Sur le plan technologique, à partir des solutions d'assistance déjà existantes ainsi que de leurs limitations, nous avons identifié un ensemble de services essentiels et les avons regroupés au sein de trois catégories. Nous présentons un modèle d'architecture logicielle pour la conception de ceux-ci visant à favoriser leur adaptation à différents contextes, leur évolution ainsi que l'intégration de nouveaux services. Enfin, nous présentons notre solution d'assistance baptisée SAMI. Au niveau clinique, nous montrons l'importance d'impliquer les personnes atteintes de troubles cognitifs, ainsi que leurs intervenants, tout au long du processus de conception de telles solutions. Nous présentons notre protocole de conception participative ainsi que sa mise en oeuvre dans le cadre de la conception de SAMI. La conception de cette solution a impliqué quatre patients ainsi que leurs intervenants professionnels et a été testée durant huit semaines. Les résultats montrent tout d'abord la possibilité de mettre en oeuvre de telles méthodes de conception, les patients ainsi que les intervenants ayant grandement participé tout au long du processus de conception. Ils montrent également la capacité des patients à apprendre à utiliser l'assistant élaboré ainsi que leur capacité à l'utiliser dans leur quotidien

Service-Oriented Architecture for Patient-Centric eHealth Solutions

The world is in shortage of about 7.2 million healthcare workers in 2013, and the figure is estimated to grow to 12.9 million by 2035, according to the World Health Organization (WHO). On the other hand, the median age of the world’s population was predicted to increase from 26.6 years in 2000 to 37.3 years in 2050, and then to 45.6 years in 2100. Thus further escalating the need for new and efficient healthcare solutions. Telehealth, telecare, and Ambient Assisted Living (AAL) solutions promise to make healthcare services more sustainable, and to enable patients to live more independently and with a higher quality of life at their homes. Smart homes will host intelligent, connected devices that integrate with the Internet of Things (IoT) to form the basis of new and advanced healthcare systems. However, a number of challenges needs to be addressed before this vision can be actualised. These challenges include flexible integration, rapid service development and deployment, mobility, unified abstraction, scalability and high availability, security and privacy. This thesis presents an integration architecture based on Service-Oriented Architecture (SOA) that enables novel healthcare services to be developed rapidly by utilising capabilities of various devices in the patients’ surroundings. Special attention is given to a service broker component, the Information Integration Platform (IIP), that has been developed to bridge communications between everyday objects and Internet-based services following the Enterprise Service Bus (ESB) principles. It exposes its functionalities through a set of RESTfulWeb services, and maintains a unified information model which enables various applications to access in a uniform way. The IIP breaks the traditional vertical “silo” approach of integration, and handles information dissemination task between information providers and consumers by adopting a publish/subscribe messaging pattern. The feasibility of the IIP solution is evaluated both through prototyping and testing the platform’s representative healthcare services, e.g., remote health monitoring and emergency alarms. Experiments conducted on the IIP reveal how performance aspects are affected by needs for security, privacy, high availability, and scalability

Eine offene Mobile Health Plattform zur Erfassung und Verarbeitung von physiologischen Parametern in der Präventivmedizin

Das Ziel dieser Arbeit war die Entwicklung eines mobilen Online-Erfassungssystems, das neue Möglichkeiten für Untersuchungen nach dem Belastungs-Aktivitäts-Konzept bietet. Dabei stand die Echtzeitüberwachung von physiologischen Parametern, Bewegungen und diversen Eingabedaten unabhängig vom Standort eines Probanden und des Untersuchers im Mittelpunkt. Zur Umsetzung erfolgte die Durchführung einer Recherche gemäß geeigneter Systemkomponenten, welche die notwendigen Eigenschaften im Hinblick auf die Datenerfassung und -übertragung zur Verfügung stellen

Contribuciones a la Rehabilitación Cognitiva de Pacientes con Enfermedades Neurodegenerativas por Medio de Realidad Virtual y Dispositivos de Bajo Coste

La realidad virtual es una tecnología que ha estado en constante desarrollo en las últimas décadas, aportando soluciones para complementar a la medicina tradicional. En particular, la salud cognitiva se ha visto beneficiada con entornos virtuales orientados a la evaluación y rehabilitación del paciente. No obstante, son limitadas las investigaciones realizadas para determinar su validez ecológica. En esta tesis doctoral se evalúan aplicaciones de realidad virtual diseñadas para cribado y rehabilitación cognitiva, incluyendo las aplicaciones orientadas a la tele rehabilitación. Con este objetivo se ha diseñado tareas basadas en dispositivos de bajo coste para sistemas inmersivos y no inmersivos, respectivamente. Bajo esta perspectiva se ha creado un marco de desarrollo para aplicaciones de realidad virtual con diferentes niveles de dificultad, que integran la recolección automatizada de resultados y el intercambio de información con servidores remotos mediante el enfoque de computación en la niebla. Las diferentes tareas han sido validadas en una población de sujetos sanos y con referencia a métodos tradicionales de valoración cognitiva. Para ello, además de utilizar las pruebas de contraste de hipótesis tradicionales, se han utilizado cuestionarios estandarizados y validados de usabilidad y satisfacción. Además, se ha optimizado el ancho de banda de red requerido para la ejecución de las tareas de rehabilitación supervisadas en tiempo real. Nuestros resultados confirman algunos de los obtenidos en investigaciones similares y aportan una mayor evidencia sobre los beneficios de la realidad virtual para la rehabilitación cognitiva, suponiendo, por ende, una base para futuros trabajos que utilicen esta tecnología para el tratamiento de enfermedades neurodegenerativas.<br /

Conception, design and evaluation of an ICT platform for independent living and remote health monitoring

The current society is dealing with a progressive ageing of the population. Life expectancy is constantly increasing and, at the same time, families tend to have less children than in the past. For these reasons, the global proportion of people aged 60 or over is expected to outnumber the younger age groups. This trend will have a serious impact on the society, since the health related costs will rise, there will be a lack of professional caregivers trained to assist the elderly and more and more people will suffer from chronic diseases that must be treated somehow. To overcome this situation, in the past years many initiatives aiming at increasing the elderly independence were born. The problemin developing technological systems for the elderly is that they are reluctant to try out newsystems and devices, so a great emphasismust be put on the design of an acceptable and usable solution. In this thesis, an ICT platform for independent living of older adults is presented. The platform is based on a standard TV and remote control, in order to lower the risk of technology refusal by older people, and aims at offering a rich set of services that include social networking, support, welfare and health. The health aspect is important but not the leading one, since such platformshould be first perceived as useful for different aspects of their daily life, and not strictly related to the concept the being oldmeans having health problems. Another aimof the proposed platformis to expand the offered services by involving external service providers, that will exploit the basic functionalities offered natively by the platform. The aspects related to the initial studies that let to the definition of system requirements and technical specifications will be presented, together with some preliminary usability results obtained from several user tests. Starting from mid 2016, the proposed platformwill be tested during three field trials in Italy, Belgiumand the Netherlands