The advancement of mobile information systems is going in parallel with Geographical Information Systems where they both meet in providing location-aware services. New systems are providing a new pervasive GIS dimension where access to geographical attributes is being possible "anytime, anyplace and anyhow". In this article, we propose a system that provides mobile users with a service that corresponds not only to their requests but also to their preferences, location and querying time. Finally, we project the query results to construct a GIS map layer that is added to original GIS area map in order to provide more indications to the path that the user should follow in order to reach the demanded service.

In this article, we introduce ADMAN an alarm-based diabetes management system for the disposal of Mobile Geriatric Teams MGT. The system aims at providing a form of remote monitoring in order to control the diabetes rate for elder patients. The system is multidimensional in a way that it resides at the patient mobile machine from a side, the doctor's mobile machine from another side and can be connected to any other entity related to the MGT that's handling his case (e.g. dietitian).

In the age of mobile computing and distributed systems, healthcare systems are employing service-oriented computing to provide users with transparent accessibility to reach their distributed resources at anytime, anywhere and anyhow. Meanwhile, these systems tend to strengthen their security shields to ensure the limitation of access to authorized entities. In this paper, we examine mobile querying of distributed XML databases within a pervasive healthcare system. In such contexts, policies -as XACML -are needed to enforce access control. We study the reactivity of this policy in the case of a user demanding access to unauthorized data sources showing that the policy will respond negatively to user demands. Thus, we propose to employ an adaptive mechanism that would provide users with reactive and proactive solutions. Our proposal is accomplished by using the RBAC scheme, the user profile and some predefined semantics in order to provide users with alternative and relevant solutions without affecting the system's integrity.

Les équipes mobiles gériatriques (EMG) se déplacent auprès du plus grand nombre de personnes âgées afin d'assurer des services dans le cadre d'une consultation globale. Les EMG ont besoin d'un système interopérable qui permet une facilité d'acquisition des données du patient qui sont distribuées et gérées par plusieurs autorités. Dans ce papier, nous montrons un système d'information pervasif dédié aux EMG. Un tel système permettra une évolution du domaine en termes de qualité et d'efficacité ; il garantira un accès transparent aux ressources médicales depuis n'importe où, n'importe comment et à n'importe quel moment. Nous mettons également en oeuvre un contrôle d'accès basé sur XACML pour assurer la sécurité de tels systèmes détenant des informations privées et confidentielles. ABSTRACT. Mobile Geriatric Teams (EMG) are evolving to meet the needs of the growing number of elder patients and to guarantee the delivery of better services through a comprehensive consultation. The EMG need an interoperable system that allows easy acquisition of patient data that are distributed and managed by several authorities. In this paper, we present a pervasive information system dedicated to serve the EMG. Such a system will strengthen the quality and increase the efficiency of medical decision-making, it will ensure seamless access to medical resources from anywhere, anyhow and anytime. We also implement access control based on XACML to ensure the security of systems holding such information that is highly private and confidential.

This paper addresses two emerging challenges that multimedia distributed systems have to deal with: the user's constant mobility and the information's sensitivity. The systems have to adapt, in real time, to the user's context and situation in order to provide him with relevant results without breaking the security and privacy policies. Distributed multimedia systems, such as the one proposed by the LINDO project, do not generally consider both issues. In this paper, we apply an access control layer on top of the LINDO architecture that takes into consideration the user's context and situation and recommends alternative resources to the user when he is facing an important situation. The proposed solution was implemented and tested in a video surveillance use case.