40,955 research outputs found

    Secure Method Invocation in JASON

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    We describe the Secure Method Invocation (SMI) framework implemented for Jason, our Javacard As Secure Objects Networks platform. Jason realises the secure object store paradigm, that reconciles the card-as-storage-element and card-as-processing-element views. In this paradigm, smart cards are viewed as secure containers for objects, whose methods can be called straightforwardly and securely using SMI. Jason is currently being developed as a middleware layer that securely interconnects an arbitrary number of smart cards, terminals and back-office systems over the Internet

    The Application of the Hermeneutic Process to Qualitative Safety Data: A Case Study using Data from the CIRAS project

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    This article describes the new qualitative methodology developed for use in CIRAS (Confidential Incident Reporting and Analysis System), the confidential database set up for the UK railways by the University of Strathclyde. CIRAS is a project in which qualitative safety data are disidentified and then stored and analysed in a central database. Due to the confidential nature of the data provided, conventional (positivist) methods of checking their accuracy are not applicable; therefore a new methodology was developed - the Applied Hermeneutic Methodology (AHM). Based on Paul Ricoeur's `hermeneutic arc', this methodology uses appropriate computer software to provide a method of analysis that can be shown to be reliable (in the sense that consensus in interpretations between different interpreters can be demonstrated). Moreover, given that the classifiers of the textual elements can be represented in numeric form, AHM crosses the `qualitative-quantitative divide'. It is suggested that this methodology is more rigorous and philosophically coherent than existing methodologies and that it has implications for all areas of the social sciences where qualitative texts are analysed

    The emergence of markets and capabilities, dynamic transaction costs and institutions: effects on organizational choices in offshored and outsourced business services in China

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    This paper has three aims: 1) to use Langlois’ framework of dynamic transaction costs to illustrate the coevolution of firm capabilities and the emergence of new markets for offshored and outsourced business services in China; 2) to use Coase’s institutional structure of production framework to analyse the influence of Chinese institutions on the organizational choices made in the offshoring and outsourcing of business services in China and 3) to link the two themes and understand the interaction between Chinese institutions and the emergence of markets and capabilities in business services in China. We use case studies and interview data to look at these issues.offshoring, China, business services, institutions, dynamic transactions costs

    Who is learning what from student evaluations of teaching?

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    Student evaluations of teaching (or SET) through anonymous survey forms are a consistent practice in higher education across the world yet research results vary considerably as to the reliability, validity and efficacy of SET. Nonetheless, the widespread use of SET for promotion and tenure decisions ensures that these results are high stakes for tertiary staff. The tension between the purposes of SET (to supposedly improve teaching) and the ramifications of SET results are explored. Staff and students tend to hold very different views of SET and the issue of maintaining high academic standards can be at risk. However, SET can be used as an opportunity for staff and students to work together on issues in teaching and learning that enhance quality for all concerned
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