322,852 research outputs found

    Concurrent Engineering Implementation in Design-Build Railway Projects

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    Design-build as a procurement method is increasingly being used in the design and construction of greenfield rail networks, and that is despite the complexities that characterise rail networks—rail infrastructure projects involves significantly more complex systems such as safety, telecommunications, signalling and electrification. One of the key drivers for this choice of procurement method for the delivery of rail networks is that the design-build contractor commits to an aggressive schedule and implements strategies to enable the works to be completed to time and cost. One of such strategies is the application of concurrent engineering principles to the design and construction works. This Chapter gives an overview of concurrent engineering as applicable to design-build rail projects, focusing mainly on the design as an activity. It identifies factors that impact the application of concurrent engineering as well as mitigations that can be applied for the successful application of concurrent engineering principles in design-build rail projects

    Systems for construction: Lessons for the construction industry from experiences in spacecraft systems engineering

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    Construction projects are becoming ever more ambitious in terms of the size of structures, the number of requirements, the number and influence of stakeholders and the extent to which technology is integrated into buildings. Although great buildings may historically have been designed and built by a single guiding mind - 'the architect' - modern buildings require teams of specialists to work together to develop ideal solutions. In these circumstances, to ensure that construction projects are delivered on time, to budget and to the requirements specified by the customer, the construction industry could benefit from adopting a systems' engineering approach to design. Based on 45 years of spacecraft instrumentation research and development and over 10 years experience teaching Systems Engineering in a range of industries, University College London's (UCL's) Mullard Space Science Laboratory has identified a set of guiding principles that have been found to be critical in delivering successful projects in the most demanding of environments. The five principles are: 'principles govern processes', 'seek alternative systems perspectives', 'understand the enterprise context', 'integrate systems engineering and project management' and 'invest in the early stages of projects'. Underlying these principles is a will to anticipate and respond to a changing environment with a focus on achieving long-term value for the enterprise. These principles are applied in both space projects and nonspace projects (through UCL's Centre for Systems Engineering), and are embedded in UCL's teaching and professional training programme. These principles could contribute to the successful delivery of complex building projects

    Principles of systems engineering management: Reflections from 45 years of spacecraft technology research and development at the mullard space science laboratory

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    Based on 45 years of experience conducting research and development into spacecraft instrumentation and 13 years' experience teaching Systems Engineering in a range of industries, the Mullard Space Science Laboratory at University College London (UCL) has identified a set of guiding principles that have been invaluable in delivering successful projects in the most demanding of environments. The five principles are: 'principles govern process', 'seek alternative systems perspectives', 'understand the enterprise context', 'integrate systems engineering and project management', and 'invest in the early stages of projects'. A common thread behind the principles is a desire to foster the ability to anticipate and respond to a changing environment with a constant focus on achieving long-term value for the enterprise. These principles are applied in space projects and have been spun-out to non-space projects (primarily through UCL's Centre for Systems Engineering). They are also embedded in UCL's extensive teaching and professional training programme. © 2012 by Author Name

    Software security requirements management as an emerging cloud computing service

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    © 2016 Elsevier Ltd. All rights reserved.Emerging cloud applications are growing rapidly and the need for identifying and managing service requirements is also highly important and critical at present. Software Engineering and Information Systems has established techniques, methods and technology over two decades to help achieve cloud service requirements, design, development, and testing. However, due to the lack of understanding of software security vulnerabilities that should have been identified and managed during the requirements engineering phase, we have not been so successful in applying software engineering, information management, and requirements management principles that have been established for the past at least 25 years, when developing secure software systems. Therefore, software security cannot just be added after a system has been built and delivered to customers as seen in today's software applications. This paper provides concise methods, techniques, and best practice requirements engineering and management as an emerging cloud service (SSREMaaES) and also provides guidelines on software security as a service. This paper also discusses an Integrated-Secure SDLC model (IS-SDLC), which will benefit practitioners, researchers, learners, and educators. This paper illustrates our approach for a large cloud system Amazon EC2 service
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