Financial and costs benefits are often put forward as the reasons why organisations decide to outsource. Emerging patterns and trends indicate that today's outsourcing decisions are often motivated by factors other than cost. Thus, the decision-making process is more complex than it may at first appear. This paper presents findings from a case study from an organisation in the UK banking sector that was motivated to outsource aspects of its information technology/information system (IT/IS). The underlying motives and decision-making process that influenced the bank outsource its IT/IS are presented and discussed. Findings from the case study suggest political perspectives, as well as human and organisational issues influenced the bank's strategic decision-making to outsource certain aspects of its business. An examination of the case study findings suggests that cost alone is not always responsible for decisions to outsource, as it was found the bank's outsourcing decision was driven by a series of complex, interrelated motives in a bid to reduce the risks and uncertainties of managing its own technology. Considering the complex nature of the outsourcing process a frame of reference that can be used to assist managers with their decision to outsource IT/IS is propagated. The case study is used to present an organisation's experiences as to how and why it decided to outsource its IS and thus offers a learning opportunity for other organisations facing similar difficulties. In addition, the case study findings highlight the need to focus greater attention on discriminating between the short and long-term consequences of IT/IS decision-making. European Journal of Information Systems (2001) 10, 15-24.

This paper reports a study exploring the learning styles and perceptions of a group of undergraduate and postgraduate learners in a university in the UK in relation to using the web for learning. In particular, we explore the sequential/global learning style dimension (which is concerned with the progress of understanding) in relation to three categories of web-based interaction: learnertutor, learner-learner, and learner-information. An Index of Learning Styles is used as the tool to explore this dimension. The findings are presented with regard to the learning preferences of a group of learners towards these three categories of interaction. We conclude with a discussion of these findings in relation to Interactive Learning Systems (ILSs) design.

We propose a watermarking scheme that can recover the original image from the watermarked one. The purpose is to verify the integrity and authenticity of DICOM images. We used 800x600x8 bits ultrasound (US) images in our experiment. SHA-256 of the whole image is embedded in the least significant bits of the RONI (Region of Non-Interest). If the image has not been altered, the watermark will be extracted and the original image will be recovered. SHA-256 of the recovered image will be compared with the extracted watermark for authentication.

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