Philippe Lalanda

iPOJO: an Extensible Service-Oriented Component Framework

Nowadays, application needs loose-coupling approach allowing asynchronous evolution. Service-oriented computing is a paradigm that utilizes services as fundamental elements for application design, and fulfills loose-coupling requirement. However, services themselves are typically only used to abstract remote functionality; the service-oriented approach proffered by web services does not promote an implementation model managing service dynamism. This paper proposes iPOJO, a service-oriented component to implement services. However, this component model does not only manage dynamic service interactions; it also provides an extensibility mechanism. IPOJO Components can manage other non-functional properties as persistency, security, autonomic management, eventing... To illustrate the approach, the paper presents a usage of iPOJO on a residential gateway.

Pervasive Service Composition in the Home Network

The home environment becomes ready to host distributed devices dynamically adapting to service availability and reacting to user location and user activity. Sensors, high definition rendering systems, home gateways, wired and wireless controllable equipments are now available. Many protocols enable connectivity and interaction between devices. However, challenges remain: protocol heterogeneity, interface fragmentation and device composition static aspect make self-organization and dynamic reconfiguration hardly achievable. This paper describes attractive scenarios at home which lead to the definition of the pervasive service composition requirements. A software architecture facing the mentioned challenges is proposed over OSGi. It first enables developers to implement distributed plug-n-play applications like a local one. It also delivers a service-oriented middleware allowing spontaneous distributed service composition to occur at runtime.

Towards an Automatic Integration of Heterogeneous Services and Devices

The recent evolution of mobile smart devices and their convergence with pervasive computing and software as a service raises new challenges. Developers of applications targeted to these environments have to face at least three major challenges: dynamicity, heterogeneity, and distribution. In this paper, we propose a service oriented component framework which addresses these challenges by automatically reifying available services in a distributed pervasive environment. Therefore, the only thing developers have to focus on is writing the business code. We have implemented and validated our framework by using several real applications developed within collaborative projects (including ITEA ANSO project).

Context-Aware Service Composition in a Home Control Gateway

One of the main technical challenges of the pervasive computing is the ability to build applications with the capacity to adapt themselves to their environment. In this paper, we present an open architecture facilitating the development of home services context dynamicity and service ambiguity are dynamically managed by smart composing elements. The architecture is applied and tested in an attractive home scenario.

An e-service infrastructure for power distribution

Delivering Web services based on data collected from distributed networks of smart devices presents several business and data-integration challenges for providers. Enterprise users need a scalable, standards-based mechanism that lets them run services without becoming experts in the technical aspects of service delivery. The Inside software infrastructure attempts to provide such a solution. Inside uses the Java 2 Enterprise Edition, the Open Services Gateway Initiative, and a suite of mediation components to address issues of scalability, dynamism, and transparency.

AutoHome: An Autonomic Management Framework for Pervasive Home Applications

This article introduces the design of the AutoHome service-oriented framework to simplify the development and runtime adaptive support of autonomic pervasive applications. To this end, we describe our novel open infrastructure for building and executing home applications. This includes the amalgamation of the two computing areas of autonomics and service orientation, to produce a component-based platform providing facilities including monitoring, touchpoints, and other common autonomic services. This infrastructure uniquely blends the advantages of distributed autonomic control with global conflict management in a management hierarchy. We discuss this platform in terms of pervasive home systems and show how one would develop such a system for two examples of automated home applications: intruder detection and medical support, respectively. Both applications were built within our framework and evaluated showing that the use of the framework introduces minimal overheads but provides many benefits. We then conclude by highlighting the contributions of AutoHome and a discussion about the lessons learned, limitations, and future research directions.

Asynchronous mediation for integrating business and operational processes

Integrating business and operational processes is necessary today to meet the markets increasingly demanding requirements. In particular, it allows rapid decision-making, customized production, and short time-to-market. To address these challenges, the authors built a mediation suite on top of a message-oriented middleware to help develop e-services based on industrial data. This software, based on a domain-specific component model, meets stringent market requirements and is being used in real-life service applications.

Autonomic enterprise service bus

In this paper, we describe the work that has been realized in order to add autonomic features to Cilia, an open source mediation framework developed jointly by the LIG/Adele team at Grenoble University and Orange Labs. Cilia has been designed for data and application mediation and is used in several industrial use cases. This paper, in particular, develops the notion of state variables and action variables adapted from control theory. It shows how they can be used to follow the state of integration chains and to bring changes at runtime.

Towards a Service Mediation Framework for Dynamic Applications

Since recently, it is accepted that mediation can take many forms depending on the application domains: for example, mediation can be seen as a means to deal with interoperability between legacy applications in large Information Systems in a variety of environments including Cloud or to synchronize, integrate and route data from sensor networks in pervasive applications. In this paper we present a lightweight, modular, dynamic and distributed framework called Cilia dedicated to mediation. Cilia aims at bringing an homogeneous solution to deal with mediation both in big and little systems and to ensure the seamless integration of the two systems. In this paper we demonstrate the benefits of the Cilia approach through a case study from an RFID project.

Domain Specific Engineering Environments

Computer aided software engineering tools represent one the main successes of software engineering in the past decades. They however need to be improved along several dimensions in order to face new challenges due to ever more complex applications, more heterogeneous technologies and more stakeholders involved. In this paper, we present an approach based on the concept of domain. We define a domain as an area in which a number of stakeholders is repeatedly performing similar activities. In a project, an arbitrary number of domains can be identified, being business, technical, or related to life cycle activities. In our metamodel-based approach, any domain can be easily modelled and the corresponding computer aided domain specific engineering environment (CADSE) can be generated. Using CADSE composition, complete and wide scope engineering environments can be built as a composition of an arbitrary number of domains. The paper presents the approach, the technology and draws a few lessons of the first years of use in a number of real projects.