Habilitador de Presencia Enriquecida para aplicaciones de Telemonitorización de variables biomédicas en Redes IP Multimedia Subsystem

En el presente trabajo se presenta el diseño e implementación de un servicio habilitador de presencia enriquecida para aplicaciones de telemonitorización de variables biomédicas implantadas sobre redes IMS. El habilitador adapta el formato estándar de presencia basado en el protocolo SIP utilizado para enviar información relativa (disponibilidad, estado, etc.) a un usuario que utiliza servicios de la red IMS (videollamada, mensajería instantánea, etc.). Esta adaptación consiste en la inclusión de información relativa a un servicio de telemonitorización añadiendo características del dispositivo empleado y de las variables biomédicas medidas. Debido a las características de la red IMS, el habilitador es independiente del dispositivo de monitorización utilizado y de los clientes SIP a los que se les envía la información de presencia. El funcionamiento del habilitador ha sido probado simulando una aplicación de teleasistencia implantada en una pasarela domiciliaria

A prototype and demonstrator of Akogrimo’s architecture: An approach of merging grids, SOA, and the mobile Internet

The trend of merging telecommunication infrastructures with traditional Information Technology (IT) infrastructures is ongoing and important for commercial service providers. The driver behind this development is, on one hand, the strong need for enhanced services and on the other hand, the need of telecommunication operators aiming at value-added service provisioning to a wide variety of customers. In the telecommunications sector, the IP Multimedia Subsystem (IMS) is a promising service platform, which may become a ''standard'' for supporting added-value services on top of the next generation network infrastructure. However, since its range of applicability is bound to SIP- enabled services, IMS extensions are being proposed by ''SIPifying'' applications. In parallel to these developments within the traditional IT sector, the notion of Virtual Organizations (VO) enabling collaborative businesses across organizational boundaries is addressed in the framework of Web Services (WS) standards implementing a Service-oriented Architecture (SOA). Here, concepts for controlled resource and service sharing based on WS and Semantic Technologies have been consolidated. Since the telecommunications sector has become, in the meantime ''mobile'', all concepts brought into this infrastructure must cope with the dynamics mobility brings in. Therefore, within the Akogrimo project the VO concept has been extended towards a Mobile Dynamic Virtual Organization (MDVO) concept, additionally considering key requirements of mobile users and resources. Especial attention is given to ensure the duality of the merge of both, SOA and IMS approaches to holistically support SOA-enabled mobile added-value services and their users. This work describes major results of the Akogrimo project, paying special attention to the overall Akogrimo architecture, the prototype implemented, and the key scenario in which the instantiated Akogrimo architecture shows a very clear picture of applicability, use, and an additional functional evaluation

SDN/NFV-enabled satellite communications networks: opportunities, scenarios and challenges

In the context of next generation 5G networks, the satellite industry is clearly committed to revisit and revamp the role of satellite communications. As major drivers in the evolution of (terrestrial) fixed and mobile networks, Software Defined Networking (SDN) and Network Function Virtualisation (NFV) technologies are also being positioned as central technology enablers towards improved and more flexible integration of satellite and terrestrial segments, providing satellite network further service innovation and business agility by advanced network resources management techniques. Through the analysis of scenarios and use cases, this paper provides a description of the benefits that SDN/NFV technologies can bring into satellite communications towards 5G. Three scenarios are presented and analysed to delineate different potential improvement areas pursued through the introduction of SDN/NFV technologies in the satellite ground segment domain. Within each scenario, a number of use cases are developed to gain further insight into specific capabilities and to identify the technical challenges stemming from them.Peer ReviewedPostprint (author's final draft

DRIVER Technology Watch Report

This report is part of the Discovery Workpackage (WP4) and is the third report out of four deliverables. The objective of this report is to give an overview of the latest technical developments in the world of digital repositories, digital libraries and beyond, in order to serve as theoretical and practical input for the technical DRIVER developments, especially those focused on enhanced publications. This report consists of two main parts, one part focuses on interoperability standards for enhanced publications, the other part consists of three subchapters, which give a landscape picture of current and surfacing technologies and communities crucial to DRIVER. These three subchapters contain the GRID, CRIS and LTP communities and technologies. Every chapter contains a theoretical explanation, followed by case studies and the outcomes and opportunities for DRIVER in this field

ASPECTS REGARDING THE INTEGRATION OF THE MODERN INFORMATION SYSTEMS

Developing an information system integration strategy, at enterprise level is one of the most difficult issues that the information systems managers must solve, within the present conditions. When settling the integration strategy, two aspects must mainly be taken into account: assuring a complete integration solution of the information systems and building an integration infrastructure of the applications. The present paper aims at presenting few aspects regarding the integration of the information systems at organizational level and describing a specifically developed IBM architecture.information systems integration, software modelling, Model Driven Architecture (MDA), Model Driven Development (MDD)

Unpacking Dynamic Capabilities in the Small to Medium Software Enterprise: Process, Assets and History

Previous studies of commercial software enterprises have employed industry-level analyses, or have focused on major players in the industry. There is, therefore, a dearth of in-depth research on small-to-medium software enterprises (SMSE). The need to understand the institutional contexts and firm-specific capabilities of such firms is important, as they account for over 90% of software enterprises operating in Europe and the US. This paper adopts a dynamic capabilities perspective to help understand the social and institutional web of conditions and factors that shaped and influenced capability development in one European SMSE. The findings illustrate that a commitment to learn and to evolve this firm’s intangible knowledge assets underpinned the development of dynamic business and IT capabilities. Another contribution is this paper’s identification of—and distinction between—‘soft’ and ‘hard’ IT capabilities, which were embedded in the firm’s organizational and managerial processes. The lessons learned here are applicable to other European SMSEs, as they share similar institutional contexts with the organization studied—for example, European SMSEs can access direct and indirect R&D funding from EU and individual member states. This study is, therefore, well timed as the EU has, in 2003, set aside a significant proportion of its 16 billion euro 6th Framework R&D budget for small-to-medium enterprises. Finally, this paper presents a dynamic capabilities model that captures the firm-specific capabilities and assets of innovative SMSEs