200 research outputs found

    Experiences of teaching UML within the information systems curriculum

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    The Unified Modelling Language (UML) has been a standard modelling language for the development of software intensive systems since 2000. As a consequence, the information systems (IS) curriculum, at the Cavendish School of Computer Science, University of Westminster in London, had UML teaching incorporated two years ago. We have encouraged the introduction to and use of UML in modules that replaced traditional approaches to IS development. In this paper we report on experiences of using UML within the two modules of our undergraduate curriculum, delivered by the IS department. The first module is taught in the second year, i.e. at level 5, and delivers requirements analysis with UML. The second module uses the UML for modelling and designing distributed business applications and is taught in the final year, at level 6. In both modules it is assumed that an introduction to modelling in IS, with the syntax and semantics of a selection of UML modelling elements and diagrams, has been done earlier. We single out some problems and give a rationale for changes in the next academic yea

    An exploratory study for effective COTS and OSS product marketing

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    Supporting quality indicators in the UK national health service

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    Quality indicators for performance management of the UK National Health Service have been introduced for general practitioners (GPs) in order to monitor if they are meeting their performance targets. Such requirements impose significant load to GPs’ everyday operations and any type of software solution that stores relevant information and addresses performance indicators can help GPs to justify their fundholding. In this paper we report on a way of incorporating the semantics of a set of quality indicators in a database schema that can fit any GPs' practice. We concentrate on indicators that posed problems when creating the database and we provide a discussion that justifies our design decisions

    Probing three-dimensional surface force fields with atomic resolution: Measurement strategies, limitations, and artifact reduction

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    Noncontact atomic force microscopy (NC-AFM) is being increasingly used to measure the interaction force between an atomically sharp probe tip and surfaces of interest, as a function of the three spatial dimensions, with picometer and piconewton accuracy. Since the results of such measurements may be affected by piezo nonlinearities, thermal and electronic drift, tip asymmetries, and elastic deformation of the tip apex, these effects need to be considered during image interpretation. In this paper, we analyze their impact on the acquired data, compare different methods to record atomic-resolution surface force fields, and determine the approaches that suffer the least from the associated artifacts. The related discussion underscores the idea that since force fields recorded by using NC-AFM always reflect the properties of both the sample and the probe tip, efforts to reduce unwanted effects of the tip on recorded data are indispensable for the extraction of detailed information about the atomicscale properties of the surface. © 2012 Baykara et al

    Congenital Lymphoedema, Bronchiectasis And Seizure: Case Report

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    A l0-year-old girl with facial anomalies, mental retardation, peripheral lymphoedema, convulsions, cerebral cortical dysgenetic changes, bronchiectasis and chronic sinusitis is presented. She had features of both yellow nail syndrome and Hennekam syndrome. We think that our case might be a new congenital lymphoedema syndrome or an intermediate form between these syndromes. East African Medical Journal Vol. 85 (3) 2008: pp. 145-14

    The narratives of Hardship: : The new and the old poor in the aftermath of the 2008 crisis in Europe

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    This document is the Accepted Manuscript version of the following article: Hulya Dagdeviren, Matthew Donoghue, and Lars Meier, ‘The narratives of hardship: the new and the old poor in the aftermath of the 2008 crisis in Europe’, The Sociological Review, vol. 65 (2): 369-385, May 2017. The final, definitive version of record is available online at doi: https://doi.org/10.1111/1467-954X.12403. Published by SAGE.This paper examines poverty and hardship in Europe after the 2008 crisis, using household interviews in nine European countries. A number of findings deserve highlighting. First, making a distinction between ‘the old poor’ (those who lived in poverty before as well as after the crisis) and ‘the new poor’ (thosewho fell into hardship after the crisis), we show that hardship is experienced quite differently by these groups. Second, the household narratives showed that while material deprivations constitute an important aspect of hardship, the themes of insecurity and dependency also emerged as fundamental dimensions. In contrast to popular political discourse in countries such as the UK, dependency on welfare or family was experienced as a source of distress and manifested as a form of hardship by participants in all countries covered in this study.Peer reviewedFinal Accepted Versio

    Probing three-dimensional surfaces force fields with atomic resolution: Measurement strategies, limitations, and artifact reduction

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    Cataloged from PDF version of article.Noncontact atomic force microscopy (NC-AFM) is being increasingly used to measure the interaction force between an atomically sharp probe tip and surfaces of interest, as a function of the three spatial dimensions, with picometer and piconewton accuracy. Since the results of such measurements may be affected by piezo nonlinearities, thermal and electronic drift, tip asymmetries, and elastic deformation of the tip apex, these effects need to be considered during image interpretation. In this paper, we analyze their impact on the acquired data, compare different methods to record atomic-resolution surface force fields, and determine the approaches that suffer the least from the associated artifacts. The related discussion underscores the idea that since force fields recorded by using NC-AFM always reflect the properties of both the sample and the probe tip, efforts to reduce unwanted effects of the tip on recorded data are indispensable for the extraction of detailed information about the atomic-scale properties of the surface

    Business models for cloud computing: Experiences from developing Modeling & Simulation as a Service applications in industry

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    © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works

    MiCADO-Edge: Towards an Application-level Orchestrator for the Cloud-to-Edge Computing Continuum

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    Automated deployment and run-time management of microservices-based applications in cloud computing environments is relatively well studied with several mature solutions. However, managing such applications and tasks in the cloud-to-edge continuum is far from trivial, with no robust, production-level solutions currently available. This paper presents our first attempt to extend an application-level cloud orchestration framework called MiCADO to utilise edge and fog worker nodes. The paper illustrates how MiCADO-Edge can automatically deploy complex sets of interconnected microservices in such multi-layered cloud-to-edge environments. Additionally, it shows how monitoring information can be collected from such services and how complex, user- defined run-time management policies can be enforced on application components running at any layer of the architecture. The implemented solution is demonstrated and evaluated using two realistic case studies from the areas of video processing and secure healthcare data analysis
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