133,543 research outputs found
The use of learning management platforms in school context - a national study
This report results from a national study carried out under the Project âEducational application of learning management platformsâ, supported and funded by the Computers, Networks, and Internet in Schools department of the Portuguese Ministry of Education- General Directorate for Innovation and Educational Development. This report has been developed by the ICT Competence Centre of the Faculty of Sciences- University of Lisbon, during the school year 2007/2008
Environments to support collaborative software engineering
With increasing globalisation of software production, widespread use of
software components, and the need to maintain software systems over long
periods of time, there has been a recognition that better support
for collaborative working is needed by software engineers.
In this paper, two approaches to developing
improved system support for collaborative software engineering are
described: GENESIS and OPHELIA.
As both projects are moving towards industrial trials and eventual publicreleases of their systems, this exercise of comparing and
contrasting our approaches has provided the basis for future
collaboration between our projects particularly in carrying out
comparative studies of our approaches in practical use
Advanced Techniques for Assets Maintenance Management
16th IFAC Symposium on Information Control Problems in Manufacturing INCOM 2018
Bergamo, Italy, 11â13 June 2018. Edited by Marco Macchi, LĂĄszlĂł Monostori, Roberto PintoThe aim of this paper is to remark the importance of new and advanced techniques supporting decision making in different business processes for maintenance and assets management, as well as the basic need of adopting a certain management framework with a clear processes map and the corresponding IT supporting systems. Framework processes and systems will be the key fundamental enablers for success and for continuous improvement. The suggested framework will help to define and improve business policies and work procedures for the assets operation and maintenance along their life cycle. The following sections present some achievements on this focus, proposing finally possible future lines for a research agenda within this field of assets management
Supporting collaboration within the eScience community
Collaboration is a core activity at the heart of large-scale co-
operative scientific experimentation. In order to support the
emergence of Grid-based scientific collaboration, new models of
e-Science working methods are needed.
Scientific collaboration involves production and manipulation of
various artefacts. Based on work done in the software
engineering field, this paper proposes models and tools which
will support the representation and production of such artefacts.
It is necessary to provide facilities to classify, organise, acquire,
process, share, and reuse artefacts generated during collaborative
working. The concept of a "design space" will be used to
organise scientific design and the composition of experiments,
and methods such as self-organising maps will be used to support
the reuse of existing artefacts.
It is proposed that this work can be carried out and evaluated in
the UK e-Science community, using an "industry as laboratory"
approach to the research, building on the knowledge, expertise,
and experience of those directly involved in e-Science
Supporting the Everyday Work of Scientists: Automating Scientific Workflows
This paper describes an action research project that we undertook with National Research Council Canada (NRC) scientists. Based on discussions about their \ud
difficulties in using software to collect data and manage processes, we identified three requirements for increasing research productivity: ease of use for end- \ud
users; managing scientific workflows; and facilitating software interoperability. Based on these requirements, we developed a software framework, Sweet, to \ud
assist in the automation of scientific workflows. \ud
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Throughout the iterative development process, and through a series of structured interviews, we evaluated how the framework was used in practice, and identified \ud
increases in productivity and effectiveness and their causes. While the framework provides resources for writing application wrappers, it was easier to code the applicationsâ functionality directly into the framework using OSS components. Ease of use for the end-user and flexible and fully parameterized workflow representations were key elements of the frameworkâs success. \u
Supporting collaborative grid application development within the escience community
The systemic representation and organisation of software artefacts, e.g. specifications, designs, interfaces, and implementations, resulting from the development of large distributed systems from software components have been addressed by our research within the Practitioner and AMES projects [1,2,3,4]. Without appropriate representations and organisations, large collections of existing software are not amenable to the activities of software reuse and software maintenance, as these activities are likely to be severely hindered by the difficulties of understanding the software applications and their associated components. In both of these projects, static analysis of source code and other development artefacts, where available, and subsequent application of reverse engineering techniques were successfully used to develop a more comprehensive understanding of the software applications under study [5,6]. Later research addressed the maintenance of a component library in the context of component-based software product line development and maintenance [7]. The classic software decompositions, horizontal and vertical, proposed by Goguen [8] influenced all of this research. While they are adequate for static composition, they fail to address the dynamic aspects of composing large distributed software applications from components especially where these include software services. The separation of component co-ordination concerns from component functionality proposed in [9] offers a partial solution
A characteristics framework for Semantic Information Systems Standards
Semantic Information Systems (IS) Standards play a critical role in the development of the networked economy. While their importance is undoubted by all stakeholdersâsuch as businesses, policy makers, researchers, developersâthe current state of research leaves a number of questions unaddressed. Terminological confusion exists around the notions of âbusiness semanticsâ, âbusiness-to-business interoperabilityâ, and âinteroperability standardsâ amongst others. And, moreover, a comprehensive understanding about the characteristics of Semantic IS Standards is missing. The paper addresses this gap in literature by developing a characteristics framework for Semantic IS Standards. Two case studies are used to check the applicability of the framework in a âreal-lifeâ context. The framework lays the foundation for future research in an important field of the IS discipline and supports practitioners in their efforts to analyze, compare, and evaluate Semantic IS Standard
Towards a Tool-based Development Methodology for Pervasive Computing Applications
Despite much progress, developing a pervasive computing application remains a
challenge because of a lack of conceptual frameworks and supporting tools. This
challenge involves coping with heterogeneous devices, overcoming the
intricacies of distributed systems technologies, working out an architecture
for the application, encoding it in a program, writing specific code to test
the application, and finally deploying it. This paper presents a design
language and a tool suite covering the development life-cycle of a pervasive
computing application. The design language allows to define a taxonomy of
area-specific building-blocks, abstracting over their heterogeneity. This
language also includes a layer to define the architecture of an application,
following an architectural pattern commonly used in the pervasive computing
domain. Our underlying methodology assigns roles to the stakeholders, providing
separation of concerns. Our tool suite includes a compiler that takes design
artifacts written in our language as input and generates a programming
framework that supports the subsequent development stages, namely
implementation, testing, and deployment. Our methodology has been applied on a
wide spectrum of areas. Based on these experiments, we assess our approach
through three criteria: expressiveness, usability, and productivity
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