11,709 research outputs found
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Enterprise portals: addressing the organisational and individual perspectives of information systems
Enterprise portals are being viewed as the next generation application platform of choice, offering benefits over both client/server and thin client arrangements. By providing a mediating layer between the information applications and resources of the organisation and the individuals using them, enterprise portals appear to provide a unique context to allow both the organisational and individual perspectives of information systems to be addressed. This study seeks to examine these often competing perspectives of information systems by using an exploratory empirical survey to investigate the actual deployment of enterprise portals within a range of different organisations. It is found that both the individual and organisational benefits that enterprise portals can offer appear to have been recognised, and coherent sets of services addressing each of these perspectives are being developed. Consistent with diffusion and acceptance of technology models, organisations appear to be commencing their portal developments with services that will ensure utilisation by individuals, and are subsequently seeking to realise organisational level benefits
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The Conundrum of Security in Modern Cloud Computing
In today’s economic climate organizations are seeking greater cost-saving measures, increased agility, and scalability that responds to the rapid changes in technology and business. Cloud computing, with its low cost pay-as-you-go business model, is helping organizations manage these changes while transforming information technology (IT) into an engine that drives business. Benefits from on-demand clouds provide users greater portability and the ability to access information from virtually anywhere: at home, a client location, when traveling, or at the office. The reduced costs and increased flexibility, however, associated with cloud computing also come with complex security issues and increased overall risk. When cloud services are moved beyond organizational boundaries, outside the border firewall, security is heightened for most organizations and navigating the complexity of these environments can be daunting. In this research paper we seek to help organizations make pragmatic decisions about where and when to use cloud solutions by outlining specific security issues that enterprises should address. We use external research sources and explore current security trends within cloud computing in order to provide background information, related research, and conclusions. We make use of colleagues, textbooks, peer reviewed journal articles, and Internet websites related to information technology and information security. Each section of our research is formatted similarly and presents pertinent security information, techniques, and tools that organizations would need in order to make relevant decisions when utilizing Software as a Service (SaaS), Platform as a Service (PaaS), or Infrastructure as a Service (IaaS)
Supporting simulation in industry through the application of grid computing
An increased need for collaborative research, together with continuing advances in communication technology and computer hardware, has facilitated the development of distributed systems that can provide users access to geographically dispersed computing resources that are administered in multiple computer domains. The term grid computing, or grids, is popularly used to refer to such distributed systems. Simulation is characterized by the need to run multiple sets of computationally intensive experiments. Large scale scientific simulations have traditionally been the primary benefactor of grid computing. The application of this technology to simulation in industry has, however, been negligible. This research investigates how grid technology can be effectively exploited by users to model simulations in industry. It introduces our desktop grid, WinGrid, and presents a case study conducted at a leading European investment bank. Results indicate that grid computing does indeed hold promise for simulation in industry
Semantic discovery and reuse of business process patterns
Patterns currently play an important role in modern information systems (IS) development and their use has mainly been restricted to the design and implementation phases of the development lifecycle. Given the increasing significance of business modelling in IS development, patterns have the potential of providing a viable solution for promoting reusability of recurrent generalized models in the very early stages of development. As a statement of research-in-progress this paper focuses on business process patterns and proposes an initial methodological framework for the discovery and reuse of business process patterns within the IS development lifecycle. The framework borrows ideas from the domain engineering literature and proposes the use of semantics to drive both the discovery of patterns as well as their reuse
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