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Pervasive computing offers environments in which user needs or tasks are fulfilled without demanding their attention. Context-aware service composition is a central aspect to achieving this, in which services are discovered and composed in response to context to meet user needs. Since pervasive computing environments are inherently dynamic and heterogeneous, context-aware service composition is a...
In context aware settings, if one or more services are unavailable, it may be useful to look for a set of services whose combined effect would be functionally equivalent to a given request. We show that the notion of functional equivalence is quite useful in some real world scenarios. In this paper, we suggest a method to obtain a composed service whose effect is functionally equivalent to the given...
Service Oriented Computing provides us with an opportunity to build distributed applications by invoking and selecting suitable services. In this paper we attempt to select context aware service and apply this to medical emergency scenario. This paper proposes an approach to select web services based on user context. Experimental results demonstrate that proposed method provides reliable solution...
With the rapid development of Web 2.0 and its related technologies, more and more end-users start to participate in the development of World Wide Web. Yet, not enough attention from both academics and industries has been paid to allowing them to compose services to assist their daily work. This is mainly due to the lack of a high-level abstraction that defines what concepts, functions, and system...
After the vision of Mark Wieser, and the advent of 3G connection with a large number of mobile computing devices(PDAs, Smartphones, Tablet, etc.) that have democratized access to information anywhere, we live in a new era of ubiquity where a set of services are offered in our environments. In this work we try to review the conception, discovery and composition of these services called pervasive in...
The second devices like tablet PCs give additional contextual information to the user while watching TV in a home network environment. With the growing number of smart devices produced in the last few years, we also need to provide users good user experiences when they use individual second device. In this paper, we propose a framework for context-awarable user interfaces of the second screen devices...
Remote vehicle monitoring system keeps track of vehicle and also monitor the fleet level of the vehicle status. Here two problems are dealt with. First one is the anywhere any time monitoring of the vehicle status cannot be done through manual monitoring and the second one is the system behavior change according to user changes. The novelty of the proposed approach is twofold. First our proposal allows...
The development of context-aware applications has been the subject of many research works in ubiquitous computing. As the modern human is getting more and more mobile, carrying an ever increasing amount of computational power around and having access to online services, the need for personalized and adaptive information services is rapidly increasing. Thus, the field of context-aware services has...
Service based business applications are built through the interaction of Web services. The behaviours of these Web services can be described by service protocols representing acceptable sequences of message exchanges. In order to guarantee the correct interaction between Web services, one can check the compatibility of their service protocols. Recent research efforts address the impact of non-functional...
The vision of the smart grid can provide the catalyst for radical progress when combined with information technology systems that have the ability to collect fine grained power usage data and translated them into input for decision support systems, which may in turn make energy monitoring and conservation a seamless extension of Web technology. An important element of the smart grid is Demand Response...
The sensor as a service is an emerging application of the services computing. However, how to implement such sensor services efficiently and reliably is an open issue. This paper presents an application framework, called Sensor Service Framework (SSF), that supports developers to build and deploy sensor services in the home network system (HNS). The SSF prescribes device-neutral features and APIs...
Traditional Learning Management Systems (LMS) failed in providing pervasive and personal services since lacking flexibility and adaptivity. This paper addresses the problems in existing LMSs and reviews related technologies in improving interoperability, reusability, flexibility and cost efficiency, followed by proposing a new framework design using service-Oriented architecture.
In order to provide the services for the users efficiently and select suitable SP and the service automatically according to the user's preference and habits when using the service, the paper apples the context-aware technology to the Service Selection Platform and picks out the Context-aware Service Selection Platform is proposed. The method is using the exiting Context-aware architecture to obtain...
A few e-Learning platforms propose a solution for ubiquity and context aware adaptability. We decided to propose a solution with meta modeling approach based on previous related works. We used a concrete software engineering industrial product that was promoted by French Government.
We observe two of the recent trends in information technology. Cloud Computing (CC) is widely accepted as an effective reuse paradigm. Mobile Computing with Mobile Internet Device (MID) such as iPhones and Android devices becomes a convenient alternative to personal computers by integrating mobility, communication, software functionality, and entertainment. Due to the resource limitations of MIDs,...
Web service is one of the fundamental technologies in implementing Service Oriented Architecture (SOA) based applications. One of the essential challenges in web service based applications is how to find a set of suitable web service candidates with regard to a user's requirement. Currently most web service discovery systems have constrains on the content and format of submitted web service request...
Service discovery and adaptation are two relevant paradigms in systems developed by assembling reusable software services accessed through their public interfaces. On one hand, the discovery process aims at discovering the most suitable services for a request. On the other hand, the adaptation process solves, as automatically as possible, mismatch cases which may be given at the different interoperability...
In order to call a context-aware service, a service requester has to reveal his contextual information to a service provider or a context manager, which may jeopardize his privacy and security. Moreover, if the client's context changes over time, a context-aware web service must be called frequently with the updated context values. In this paper, we propose a service customizer agent at the client's...
Combining existing services to create new pervasive computing services involves special design considerations, including context awareness, contingency management, device heterogeneity, and user empowerment. Service composition is a natural concept around which to structure pervasive systems and individuate parts of them that are suitable for contingency management, application, storage, and so on...
Context awareness is one of the most fundamental issues in pervasive computing. In this paper, an ontology based context model is proposed, which defines "high-level" context ontology to provide basic concepts for sharing and managing context information. Our context model takes QoS and Security supporting into account. In addition, a context aware architecture based on semantic web service...
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