Observer/Controller and Ontology/Rule-based Architecture: A Design Approach for Context-aware Pervasive Computing Systems

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

In recent years, the development of computing technologies has simplified the daily life tasks since the environment is improved by different applications. Pervasive computing (also called ubiquitous computing) is one of the most efficient computing areas which offers several smart systems aiming to provide various significant services in different life domains such as healthcare, sport and education. To this purpose, pervasive computing systems need to adapt themselves automatically in response to the dynamic change of context. Context-awareness is a central aspect of pervasive computing systems, characterizing their ability to adapt and perform tasks based on context. The notion of context has been recognized as an important characteristic of pervasive systems where multitude smart devices and sensors collect data, interact, exchange information and provide several services. Ubiquitous or pervasive healthcare systems (U-Healthcare systems) are one of the main application areas of pervasive computing which provide several services such as monitoring health and wellbeing of patients anytime and anywhere by using intelligent environment technologies. The complexity of pervasive healthcare systems is steadily increasing since there is a growing variety of sensors and mobile devices (that have limited resources such as battery life time), which are highly connected and can be used for different tasks in dynamically changing environments. In order to decrease this complexity, innovative ideas for the design and the development of these systems must be found. Designing context-aware pervasive systems in general and U-Healthcare in particular can be laborious mainly due to the challenges faced in both research and practice. The major challenges that researchers and developers need to consider in this field include; how to model the context, how to reason upon the context, how to provide the appropriate services to the end-user and how to ensure the service continuity on mobile devices? The difficulty to solve these challenges consists mainly in providing a useful support that facilitates the design and the development of those systems. The purpose of this thesis is to propose a new design approach for context-aware pervasive systems in general, and U-Healthcare systems in particular. This approach consists in combining the generic Observer/Controller architecture of Organic Computing, as well as Ontologies and Rule-based paradigms. On one hand, we provide a generic context model based on Ontology and Rule-based-approach which allows representing contextual information, reasoning upon this information, inferring the current situations and then selecting appropriate services according to the inferred situations. On the other hand, we propose a new architecture that allows keeping systems highly supervised using the generic Observer/Controller of Organic Computing paradigms with the Ontology and Rule-based context model. This architecture supports also solutions that can be proposed by the developers to ensure the continuity of services on mobile devices. In order to demonstrate the usefulness of the proposed approach, a prototype is implemented and experimentations have been conducted in a scenario example of UHealthcare system.

روابط وملفات

التعريف والنوع

رقم الوثيقة

0dd66256-de0c-476e-8020-1473c89fb65c

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل دكتوراة

نوع الملف

pdf text

أسماء الملفات

302464_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":" Mohamed Khireddine Kholladi","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Amina Hameur Laine","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

English

المصدر والدورية

اسم المصدر

Observer/Controller and Ontology/Rule-based Architecture: A Design Approach for Context-aware Pervasive Computing Systems

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

context awarecomputing, context modelling, context reasoning, context-aware systems, context-awareness, Observer/Controller architecture, Ontology-based approach, Pervasive computing, Rule-based approach, ubiquitous systems, U-Healthcare systems

إشراف وإعداد

الإشراف

Mohamed Khireddine Kholladi

الإعداد

Amina Hameur Laine

الاقتباسات الببليوغرافية