A cloud resource management model for the creation and orchestration of social communities

Managing resources, context and data in mobile clouds is a challenging task. Specific aspects of spontaneity, large interaction space and dynamic interaction share a metaphorical resemblance to chemistry, chemical reactions and solutions. In this paper, it is argued that by adopting a nature-inspired chemical computing model, a mobile cloud resource management model can be evolved to serve as the basis for novel service modelling and social computing in mobile clouds. To support the argument, a chemistry inspired computation model, Chemistry for Context Awareness (C2A), is extended with Higher Order Chemical Language (HOCL) and High Level Petri-net Graph (HLPNG) formalisms. A scenario and simulation-based evaluation of the proposed model, focusing on two applications dynamic service composition and social communities identification, is also presented in this paper. The formal encoding of C2A validates its assumptions, enabling formal execution and analysis of context-based interactions that are derived using C2A principles

Past, present and future of information and knowledge sharing in the construction industry: Towards semantic service-based e-construction

The paper reviews product data technology initiatives in the construction sector and provides a synthesis of related ICT industry needs. A comparison between (a) the data centric characteristics of Product Data Technology (PDT) and (b) ontology with a focus on semantics, is given, highlighting the pros and cons of each approach. The paper advocates the migration from data-centric application integration to ontology-based business process support, and proposes inter-enterprise collaboration architectures and frameworks based on semantic services, underpinned by ontology-based knowledge structures. The paper discusses the main reasons behind the low industry take up of product data technology, and proposes a preliminary roadmap for the wide industry diffusion of the proposed approach. In this respect, the paper stresses the value of adopting alliance-based modes of operation

Editorial: Grammar in the face of diversity

The river one dips one’s toes into from one editorial to the next is never the same, as Heraclitus might have observed. Part 1 of this double issue (December, 2005) consisted of eight articles from contributors based in five countries: the United States, England, New Zealand, South Africa and Canada. Part 2 contains six articles and two teacher narratives from the United States (two), Scotland, the Netherlands, Australia (2), Indonesia and Denmark. The inclusion of contributors from European countries outside of the United Kingdom is a reminder that debates over the “grammar” question are not confined to the Anglophonic world. I am grateful to Amos van Gelderen and Anette Wulff for finding time to contribute to a journal, which hitherto has addressed itself to readers in a relatively small range of (officially) English speaking constituencies. I am also grateful to Handoyo Widodo for his contribution, written in the context of English-language teaching in Indonesia

Benefits and challenges of applying Semantic Web Services in the e-Government domain

Joining up services in e-Government usually implies governmental agencies acting in concert without a central control regime. This requires the sharing of scattered and heterogeneous data. Semantic Web Service (SWS) technology can help to integrate, mediate and reason between these datasets. However, since few real-world applications have been developed, it is still unclear which are the actual benefits and issues of adopting such a technology in the e-Government domain. In this paper, we contribute to raising awareness of the potential benefits in the e-Government community by analyzing motivations, requirements, and expected results, before proposing a reusable SWS-based framework. We demonstrate the application of this framework by a compelling use case: a GIS-based emergency planning system. We illustrate the obtained benefits and the key challenges which remain to be addressed

What really matters? A qualitative analysis on the adoption of innovations in agriculture

The agricultural industry is confronted with the need of increasing the production to feed a growing population, and contemporarily to manage the decreased availability of natural resources. This major challenge boosts agriculture sector to adopt new approaches and technical innovations; anyway, the adoption of innovations in agriculture is not immediate, due to the interaction of many drivers that impact on individuals and enterprises’ decisions. This paper aims at providing a list of drivers for the adoption of technological innovations in agriculture, on the basis of the outcomes of in-depth interviews and focus groups performed in three European countries (Italy, Greece, Turkey). With specific reference to innovations, ease of use, effectiveness, usefulness, resource savings, and compatibility were mentioned as relevant features for an innovation to be adopted. Trials, demonstrations, experience and knowledge sharing, and support from qualified third parties were included among the facilitating factors for conveying and promoting innovations. Finally, public funding, agricultural policies and market conditions were identified as factors that may tip the balance in the process of innovations’ adoption

Financial resilience in local authorities: an exploration of Anglo-Italian experiences

For more than thirty years public management and accounting theories and practice have been strongly influenced by the search for efficiency, heralded by the New Public Management and similar public sector modernization movements. Public administrations have focused their attention on economy, efficiency and effectiveness, looking for cost containment, matching resources and goals, output maximization or input minimization. Even the wave of development of performance measurement and management tools have mainly emphasized the importance of short-term efficiency, often without worrying too much about their ability to ensure public administrations’ responsiveness in the face of unexpected events and crises

Service-oriented coordination platform for technology-enhanced learning

It is currently difficult to coordinate learning processes, not only because multiple stakeholders are involved (such as students, teachers, administrative staff, technical staff), but also because these processes are driven by sophisticated rules (such as rules on how to provide learning material, rules on how to assess students’ progress, rules on how to share educational responsibilities). This is one of the reasons for the slow progress in technology-enhanced learning. Consequently, there is a clear demand for technological facilitation of the coordination of learning processes. In this work, we suggest some solution directions that are based on SOA (Service-Oriented Architecture). In particular, we propose a coordination service pattern consistent with SOA and based on requirements that follow from an analysis of both learning processes and potentially useful support technologies. We present the service pattern considering both functional and non-functional issues, and we address policy enforcement as well. Finally, we complement our proposed architecture-level solution directions with an example. The example illustrates our ideas and is also used to identify: (i) a short list of educational IT services; (ii) related non-functional concerns; they will be considered in future work

Editorial: “Grammar wars” – Beyond a truce

Any special issue of a journal is an acknowledgement of a conversation that needs to be had. The conversation in this double issue of English Teaching: Practice and Critique has had a multiplicity of prompts, some of which I will refer to in this introduction, others of which will be referred to by the contributors to this issue (Part 1). In respect of this journal as a forum, the conversation will spill over into Volume 5, Number 1 (May, 2006). This editorial should be thought of as a work in progress; contributions to Part 2 have yet to arrive in my email basket and cannot be referred to here. Some of my own prompts in initiating this conversation have their origins close to home – in my experiences as a teacher, teacher educator and researcher in the New Zealand context. It is a context that has had its own share of social upheaval and educational “reform” in the last twenty years (Locke, 2000, 2001 and 2004). In the larger context of struggles over administrative, curriculum and assessment policy and practice, questions of “grammar” and “language” have not been prominent on the radar screen

Context-aware adaptation in DySCAS

DySCAS is a dynamically self-configuring middleware for automotive control systems. The addition of autonomic, context-aware dynamic configuration to automotive control systems brings a potential for a wide range of benefits in terms of robustness, flexibility, upgrading etc. However, the automotive systems represent a particularly challenging domain for the deployment of autonomics concepts, having a combination of real-time performance constraints, severe resource limitations, safety-critical aspects and cost pressures. For these reasons current systems are statically configured. This paper describes the dynamic run-time configuration aspects of DySCAS and focuses on the extent to which context-aware adaptation has been achieved in DySCAS, and the ways in which the various design and implementation challenges are met