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A common approach in research projects is to plan the evaluation and in particular the validation phase In the last months of the project. When done late in the project, validation cannot provide valuable inputs to the development of the research idea, because there is no space to bring about changes, and very often ends up as confirmatory tests. Software validation can and should occur since creating...
Microgrids have been identified as a key instruments in solving energy security, environmental sustainability and energy equity problems faced by developing countries. Furthermore, the opportunity exists for these countries to lead the way in terms of microgrid technology due to the lack of preexisting conventional large-scale generation and inherent support infrastructures found in more economically...
The increasing use of online social networks (OSNs) in emergency situations shows us a promising future of human cooperation through OSNs. Despite this intense interest, a number of fundamental limitations still exist, such as lack of appropriate conceptual models and limitations on cooperation methods and shareable resources. To address existing limitations, we propose Whistle - a cooperation framework...
The ever-accelerating growth of cloud-based services (CBS) and the prevalence of multi-sided business models have distributed users' data across different data silos that hinder mobile applications development and sustainability. The present paper aims at describing an open framework that abstracts functionality from CBSs through a common Graph, RESTful API, which manages calls among various CBS APIs...
This study describes and evaluates a novel trust model for a range of collaborative applications. The model assumes that humans routinely choose to trust their peers by relying on few recurrent presumptions, which are domain independent and which form a recognisable trust expertise. We refer to these presumptions as trust schemes, a specialised version of Walton's argumentation schemes. Evidence is...
Assurance cases are documented bodies of evidence that provide valid and convincing arguments that a system is adequately dependable in a given application and environment. Assurance cases are widely required by regulation for safety-critical systems in the EU. There have been several graphical notation systems proposed for assurance cases. GSN (Goal Structuring Notation) and CAE (Claim, Argument,...
This paper examines Ecological Metadata Language (EML) as a generative platform facilitating new ecological research. It reflects on literature about the EML platform, and on the EML platform itself. First, it identifies a substantial gap in literature about use of the EML platform for intended research. Second, it identifies some strengths and weaknesses of the EML platform to support research about...
Accurate provenance information facilitates improved understanding of Earth science data and scientific reproducibility and can serve as an indicator of data quality. Provenance capture is an integral part of many modern workflow systems but may not have been considered in the design of legacy data production systems. Furthermore, in addition to data lineage, it is also important to capture contextual...
A Publish/Subscribe mechanism based on the Open Mobile Alliance's (OMA) Next Generation Services Interface (NGSI) open standard, allows interfacing the information available from many publishers with heterogeneous customers. Pervasive devices (including mobile smartphones) publish a huge amount of real world information, which afterwards is accessed through web browsers and applications. The adoption...
This paper investigates whether the quality and efficiency of peer review is more influenced by scientists' behaviour or by the type of scientific community structure (homogeneous vs. heterogeneous). We looked especially at the importance of reciprocity and fairness to ensure cooperation between everyone involved and the role of evaluation standards to reduce parochialism. We modelled peer review...
Code reviews are an integral part of the development of a dependable system such as for airport operations. It is commonly accepted that code reviews are an effective quality assurance technique even if a rigorous application is also a high cost factor. For large software systems a formal method may be inapplicable throughout the whole code base. In this study an airport operational database (AODB)...
There have been great efforts in the semantic web community so far in order to provide specifications, standards and ontologies to facilitate semantic processes in the web. Our aim is to take advantage of these works as much as possible for the purpose of modelling and representing information and knowledge of collaborative learning in the context of online web forums. To this end, an ontological...
Nowadays, web contains a multitude of information sources and knowledge which often are represented as HTML files. These files can be used as educational resources (ERs) or may contain inside an object (piece of text, image …) which representing a learning object of lower granularity, and can be appropriate for a specific educational scenario. In this paper we propose an approach that allows us to...
Many data sharing communities create data standards (“hub” schemata) to speed information integration by increasing reuse of both data definitions and mappings. Unfortunately, creation of these standards and the mappings to the enterprise's implemented systems is both time consuming and expensive. This paper presents Unity, a novel tool for speeding the development of a community vocabulary, which...
This panel seeks to initiate a discussion within the modeling and simulation community about the way we teach conceptual modeling for simulation with the view of bringing about improvements. The challenge addressed is how to educate and equip the novice analyst to become a professional rather than letting him become an artist - being very much the current practice. The need for professionalism is...
Architecting has become an important discipline within the broader context of systems engineering. The lack of a common understanding of the discipline amongst practitioners and other stakeholders, particularly in broad communities, can result in confusion, misunderstanding and inefficiencies. Methods and principles from the Soft Systems Methodology (SSM) are used to define a method for investigating...
Grid and e-science infrastructure interoperability is an increasing demand for Grid applications but interoperability based on common open standards adopted by Grid middle-wares are only starting to emerge on Grid infrastructures and are not broadly provided today. In earlier work we have shown how open standards can be improved by lessons learned from cross-Grid applications that require access to...
This paper will discuss strategies for using international domain standards within a national context. The various strategies are illustrated by means of a case study of the temporary staffing industry.
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