An architecture for integrating learning object repository resources into web videoconference services

Reusing Learning Objects saves time and reduce development costs. Hence, achieving their interoperability in multiple contexts is essential when creating a Learning Object Repository. On the other hand, novel web videoconference services are available due to technological advancements. Several benefits can be gained by integrating Learning Objects into these services. For instance, they can allow sharing, co-viewing and synchronized co-browsing of these resources at the same time that provide real time communication. However, several efforts need to be undertaken to achieve the interoperability with these systems. In this paper, we propose a model to integrate the resources of the Learning Object Repositories into web videoconference services. The experience of applying this model in a real e-Learning scenario achieving interoperability with two different web videoconference services is also described

User Interface Abstraction for enabling TV set based Inclusive Access to the Information Society

199 p.The television (TV) set is present in most homes worldwide, and is the most used Information and Communication Technology (ICT). Despite its large implantation in the market, the interactive services consumption on TV set is limited. This thesis focuses on overcoming the following limiting factors: (i) limited Human Computer Interaction and (ii) lack of considering user’s real life context in the digital television (dTV) service integration strategy. Making interactive services accessible to TV set’s large user base, and especially to the most vulnerable ones, is understood as the path to integrate the mankind with the information society. This thesis explores the use of user interface abstraction technologies to reach the introduced goals. The main contributions of this thesis are: (i) an approach to enable the universally accessible remote control of the TV set, (ii) an approach for the provision of universally accessible interactive services through TV sets, and (iii) an approach for the provision of universally accessible services in the TV user’s real life context. We have implemented the contributing approaches for different use cases, and we have evaluated them with real users, achieving good results

The LAB@FUTURE Project - Moving Towards the Future of E-Learning

This paper presents Lab@Future, an advanced e-learning platform that uses novel Information and Communication Technologies to support and expand laboratory teaching practices. For this purpose, Lab@Future uses real and computer-generated objects that are interfaced using mechatronic systems, augmented reality, mobile technologies and 3D multi user environments. The main aim is to develop and demonstrate technological support for practical experiments in the following focused subjects namely: Fluid Dynamics - Science subject in Germany, Geometry - Mathematics subject in Austria, History and Environmental Awareness – Arts and Humanities subjects in Greece and Slovenia. In order to pedagogically enhance the design and functional aspects of this e-learning technology, we are investigating the dialogical operationalisation of learning theories so as to leverage our understanding of teaching and learning practices in the targeted context of deployment

Development of an advanced web application for managing videoconference

El objetivo del proyecto es realizar un cliente para videoconferencias de alta definición basado en Web. Se ha utilizado SIP como protocolo de señalización (establecimiento, finalización) de videoconferencias, para la gestión la lista de los contactos, la presencia, y la negociación de las capacidades multimedia.Existen numerosas aplicaciones que ofrecen al usuario la posibilidad de realizar videoconferencias en alta definición sobre Internet. Estas aplicaciones centran sus esfuerzos en la transmisión de contenido de alta calidad sobre Internet, pero dejan sin resolver la gestión del establecimiento, finalización de llamadas, aceptación, rechazo de invitaciones, suscripción y recepción de notificaciones del servicio de presencia (aparición de usuarios, cambios de estado, etc). El objetivo del proyecto es realizar un cliente para videoconferencias de alta definición basado en Web. Se ha utilizado SIP como protocolo de señalización (establecimiento, finalización) de videoconferencias, para la gestión la lista de los contactos, la presencia, y la negociación de las capacidades multimedia La aplicación desarrollada permite que, un usuario a partir de una web, sea capaz de ver todos los usuarios conectados al servicio, conocer sus características y poder establecer videoconferencias de alta calidad, utilizando el entorno de videoconferencia negociado (por ejemplo dvts, ultragrid). La aplicación actúa como un gateway HTTP-SIP, traduciendo las peticiones SIP a peticiones HTTP y viceversa. Las peticiones HTTP son enviadas hacia el cliente para que la trate y realice los cambios necesarios en la interfaz web y en su modelo de datos. La interfaz de web del usuario se ha desarrollado con Google Web Toolkit, un toolkit de Google para el desarrollo de aplicaciones AJAX en lenguaje de programación Java. El servidor se comunica con tres módulos. Con el mundo SIP para la señalización de videoconferencia, con el agente de presencia para gestionar la lista y con el cliente AJAX para comunicarse con los usuarios de la aplicación. El proyecto explica las fases de definición de requerimientos, diseño y arquitectura de la aplicación. Expone el estado del arte de las tecnologías y comenta algunos detalles de la implementación, finalizando con una planificación temporal y unos resultados finales del proyecto

A flexible open source web platform to facilitate Learning Object evaluation

Systematic evaluation of Learning Objects is essential to make high quality Web-based education possible. For this reason, several educational repositories and e-Learning systems have developed their own evaluation models and tools. However, the differences of the context in which Learning Objects are produced and consumed suggest that no single evaluation model is sufficient for all scenarios. Besides, no much effort has been put in developing open tools to facilitate Learning Object evaluation and use the quality information for the benefit of end users. This paper presents LOEP, an open source web platform that aims to facilitate Learning Object evaluation in different scenarios and educational settings by supporting and integrating several evaluation models and quality metrics. The work exposed in this paper shows that LOEP is capable of providing Learning Object evaluation to e-Learning systems in an open, low cost, reliable and effective way. Possible scenarios where LOEP could be used to implement quality control policies and to enhance search engines are also described. Finally, we report the results of a survey conducted among reviewers that used LOEP, showing that they perceived LOEP as a powerful and easy to use tool for evaluating Learning Objects

NEXT GENERATION: TRANSFORMATION TO A 21ST CENTURY UNIVERSITY VIA CORE STRATEGIC PROJECTS

thabasca University (AU) is recreating itself as a 21st century university. As an open and distance learning (ODL) university, its mandate is to remove barriers to university-level education. This is the vision and institutional context for any changes. Herein, we describe a series of projects with particular focus on two recent major initiatives that challenged our capacity to deal with large complex programs. An analysis of the effect of the start-up and operation of these two major programs with particular emphasis on project management, organizational change, acceptance by the academy, and absorbing the additional work is given. We offer, in the form of lessons learned, our experience for successful systematic integration of ICTs within an open university. These lessons, we believe are relevant for technology integration at any large educational organization

FORGE: An eLearning Framework for Remote Laboratory Experimentation on FIRE Testbed Infrastructure

The Forging Online Education through FIRE (FORGE) initiative provides educators and learners in higher education with access to world-class FIRE testbed infrastructure. FORGE supports experimentally driven research in an eLearning environment by complementing traditional classroom and online courses with interactive remote laboratory experiments. The project has achieved its objectives by defining and implementing a framework called FORGEBox. This framework offers the methodology, environment, tools and resources to support the creation of HTML-based online educational material capable accessing virtualized and physical FIRE testbed infrastruc- ture easily. FORGEBox also captures valuable quantitative and qualitative learning analytic information using questionnaires and Learning Analytics that can help optimise and support student learning. To date, FORGE has produced courses covering a wide range of networking and communication domains. These are freely available from FORGEBox.eu and have resulted in over 24,000 experiments undertaken by more than 1,800 students across 10 countries worldwide. This work has shown that the use of remote high- performance testbed facilities for hands-on remote experimentation can have a valuable impact on the learning experience for both educators and learners. Additionally, certain challenges in developing FIRE-based courseware have been identified, which has led to a set of recommendations in order to support the use of FIRE facilities for teaching and learning purposes

The Semantic Grid: A future e-Science infrastructure

e-Science offers a promising vision of how computer and communication technology can support and enhance the scientific process. It does this by enabling scientists to generate, analyse, share and discuss their insights, experiments and results in an effective manner. The underlying computer infrastructure that provides these facilities is commonly referred to as the Grid. At this time, there are a number of grid applications being developed and there is a whole raft of computer technologies that provide fragments of the necessary functionality. However there is currently a major gap between these endeavours and the vision of e-Science in which there is a high degree of easy-to-use and seamless automation and in which there are flexible collaborations and computations on a global scale. To bridge this practice–aspiration divide, this paper presents a research agenda whose aim is to move from the current state of the art in e-Science infrastructure, to the future infrastructure that is needed to support the full richness of the e-Science vision. Here the future e-Science research infrastructure is termed the Semantic Grid (Semantic Grid to Grid is meant to connote a similar relationship to the one that exists between the Semantic Web and the Web). In particular, we present a conceptual architecture for the Semantic Grid. This architecture adopts a service-oriented perspective in which distinct stakeholders in the scientific process, represented as software agents, provide services to one another, under various service level agreements, in various forms of marketplace. We then focus predominantly on the issues concerned with the way that knowledge is acquired and used in such environments since we believe this is the key differentiator between current grid endeavours and those envisioned for the Semantic Grid