4,177 research outputs found

    Technical Report on Deploying a highly secured OpenStack Cloud Infrastructure using BradStack as a Case Study

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    Cloud computing has emerged as a popular paradigm and an attractive model for providing a reliable distributed computing model.it is increasing attracting huge attention both in academic research and industrial initiatives. Cloud deployments are paramount for institution and organizations of all scales. The availability of a flexible, free open source cloud platform designed with no propriety software and the ability of its integration with legacy systems and third-party applications are fundamental. Open stack is a free and opensource software released under the terms of Apache license with a fragmented and distributed architecture making it highly flexible. This project was initiated and aimed at designing a secured cloud infrastructure called BradStack, which is built on OpenStack in the Computing Laboratory at the University of Bradford. In this report, we present and discuss the steps required in deploying a secured BradStack Multi-node cloud infrastructure and conducting Penetration testing on OpenStack Services to validate the effectiveness of the security controls on the BradStack platform. This report serves as a practical guideline, focusing on security and practical infrastructure related issues. It also serves as a reference for institutions looking at the possibilities of implementing a secured cloud solution.Comment: 38 pages, 19 figures

    Taxonomy of Cloud Lock-in Challenges

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    This chapter reviews key concepts and terminologies needed for understanding the complexity of the vendor lock-in problem being investigated in this book. Firstly, we present aspects of cloud computing that contribute to vendor lock-in and briefly introduce existing results from cloud-related areas of computer science that contributes to understanding and tackling vendor lock-in. Secondly, we explore the literature on proprietary lock-in risks in cloud computing environments to identify its causes (i.e., restrictions), consequences, mitigations strategies, and related challenges faced by enterprise consumers migrating to cloud-based services. Then, we propose taxonomy of cloud lock-in perspectives based on reports of real experiences on migration to understand the overall cloud SaaS migration challenges. Finally, we narrow down to our perspective on cloud lock-in to three main perspectives which takes the use of sound techniques from IS research discipline and cloud-related literature into consideration, to improve the portability, security and interoperability of cloud (and on-premise) applications in hybrid environments. Collectively, the discussions presented herein, accordingly enables both academia and IT practitioners in the cloud computing community to get an overarching view of the process of combating application and data lock-in challenges, and security risks in the cloud

    Review of the environmental and organisational implications of cloud computing: final report.

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    Cloud computing – where elastic computing resources are delivered over the Internet by external service providers – is generating significant interest within HE and FE. In the cloud computing business model, organisations or individuals contract with a cloud computing service provider on a pay-per-use basis to access data centres, application software or web services from any location. This provides an elasticity of provision which the customer can scale up or down to meet demand. This form of utility computing potentially opens up a new paradigm in the provision of IT to support administrative and educational functions within HE and FE. Further, the economies of scale and increasingly energy efficient data centre technologies which underpin cloud services means that cloud solutions may also have a positive impact on carbon footprints. In response to the growing interest in cloud computing within UK HE and FE, JISC commissioned the University of Strathclyde to undertake a Review of the Environmental and Organisational Implications of Cloud Computing in Higher and Further Education [19]

    Investigating Cloud ERP Adoption in Australian Higher Education Institutions: A Case Study

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    Background: Some higher education institutions (HEIs) are constantly under pressure to deliver superior quality education services at low costs through deploying traditional on-premise systems. Cloud-based enterprise resource planning (Cloud ERP) presents an ideal opportunity to lower HEI costs in terms of scalability and pay-per-use features. Adoption of Cloud ERP is, however, still low for the context of HEIs. The successful adoption of Cloud ERP depends not only on the support of system providers but also on understanding Cloud ERP adoption from the client organization perspective. This study explores Cloud ERP adoption in the context of Australian HEIs. Method: This study adopted a case study methodology involving the in-depth semi structured interviews of several key stakeholders. Thematic analysis was used to analyze and interpret interview data. Results: Based on the case study, our findings suggest that this particular Australian HEI was subject to strategic, operational, technological, and financial motives originating from either internal or external locus. Most of the expected motives were realized, except the full flexibility of Cloud ERP. Four major challenges of Cloud ERP implementation were found. Conclusion: This study empirically investigates Cloud ERP adoption in HEIs by identifying the motives, realized benefits and challenges of Cloud ERP adoption, which bridges the research gap of this topic. This study could assist Cloud ERP providers to adjust their marketing strategies to promote the adoption rate of Cloud ERP in HEIs. Understanding the motives, challenges and benefits of IT adoption in HEIs facilitates judicious decision-making prior to selection and minimizes the possibility of the failure of Cloud ERP adoption

    A Taxonomy of Motives for Cloud ERP Adoption

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    Much of the existing literature focuses on critical factors for successfully introducing cloud ERP systems. However, researchers have paid relatively scant attention to identifying the underlying motives that persuade organisations to consider adopting cloud ERP systems successfully. Understanding organisational motives are essential because: a) they can affect the extent of cloud ERP deployment and b) changes that organisations are willing to incorporate for achieving the expected business values. Based on a content analysis of 40 online Australian case stories, this research reports an empirically derived taxonomy of organisational motives for adopting cloud ERP. The 2-dimensional taxonomy consists of types and locus of motive. The strategic motives were found to be the most significant type of motive for cloud ERP adoption, whereas the internal motives indicated a stronger influence on the adoption decision. The proposed taxonomy provides a springboard for further studies to investigate motivations for the adoption of cloud ERP
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