Antony Powell | University of York (original) (raw)
Related Authors
Graduate Center of the City University of New York
Uploads
Papers by Antony Powell
SAE Technical Paper Series
Lecture Notes in Computer Science, 2007
ABSTRACT This paper describes the application of comparative simulation models to reason about th... more ABSTRACT This paper describes the application of comparative simulation models to reason about the economic risks and benefits of adopting new methods and tools for software development. It addresses three questions: (i) can technology substitution be modeled with sufficient confidence? (ii) what modeling strategy is most appropriate? and (iii) what are the outcomes of modeling technology substitution on an industrial case study? The end goal is to develop models that support economic evaluations that are necessary and sufficient to support technology substitution decisions. Such models will help developers and managers to assess the value of a new technology and employ strategies to de-risk its adoption.
This document is the result of collaboration between the Rolls-Royce High Integrity Systems and S... more This document is the result of collaboration between the Rolls-Royce High Integrity Systems and Software Centre (HISSC), BAe Military Aircraft Division, British Aerospace Dependable Computing Systems Centre (DCSC) and the RR UTC at the University of York. It responds to concerns about the way in which systems and software engineering tools and methods are evaluated and emplaced.
"Content is king... but context is the kingdom" (anon). This talk explores the nature, ... more "Content is king... but context is the kingdom" (anon). This talk explores the nature, importance and value of context in data. A structured method for managing information context will be introduced along with application examples from aerospace and defence projects. It illustrates how complexity is purely a level of intricacy that is not observed (or observable) and highlights implications for the way we make decisions and forecasts in the presence of uncertainty.
Preliminary work on the development of measures appropriate for the safety domain is reported. Me... more Preliminary work on the development of measures appropriate for the safety domain is reported. Measures are expressed in the style of the Practical Software and Systems Measurement (PSM) approach, a programme sponsored by the US DoD. Proposed measures are integrated with the PSM measurement framework. Reported work has been informed by discussions within the PSM community and by concurrent work on the safety extensions to CMMISM, derived from the +SAFE safety extensions project, sponsored by the Australian Department of Defence. The paper discusses the background to the work, locates it within a measurement framework for the safety domain and proposes a set of measures, with justifications. The paper closes with an assessment of progress in safety measurement and identifies areas needing further work.
1st IET International Conference on System Safety, 2006
ABSTRACT The need for measurement to support the development and operation of safety-and security... more ABSTRACT The need for measurement to support the development and operation of safety-and security-critical systems is being increasingly recognised, and there is a growing body of reported work. Management Systems are required by applicable standards in both fields, with implied codification and quantification, where appropriate. This paper summarises an on-going effort to apply a systematic measurement method to these properties. Work draws on the measurement framework of ISO/IEC 15939:2002, and the supporting materials of the Practical Systems and Software (PSM) project.
SAE Technical Paper Series
Lecture Notes in Computer Science, 2007
ABSTRACT This paper describes the application of comparative simulation models to reason about th... more ABSTRACT This paper describes the application of comparative simulation models to reason about the economic risks and benefits of adopting new methods and tools for software development. It addresses three questions: (i) can technology substitution be modeled with sufficient confidence? (ii) what modeling strategy is most appropriate? and (iii) what are the outcomes of modeling technology substitution on an industrial case study? The end goal is to develop models that support economic evaluations that are necessary and sufficient to support technology substitution decisions. Such models will help developers and managers to assess the value of a new technology and employ strategies to de-risk its adoption.
This document is the result of collaboration between the Rolls-Royce High Integrity Systems and S... more This document is the result of collaboration between the Rolls-Royce High Integrity Systems and Software Centre (HISSC), BAe Military Aircraft Division, British Aerospace Dependable Computing Systems Centre (DCSC) and the RR UTC at the University of York. It responds to concerns about the way in which systems and software engineering tools and methods are evaluated and emplaced.
"Content is king... but context is the kingdom" (anon). This talk explores the nature, ... more "Content is king... but context is the kingdom" (anon). This talk explores the nature, importance and value of context in data. A structured method for managing information context will be introduced along with application examples from aerospace and defence projects. It illustrates how complexity is purely a level of intricacy that is not observed (or observable) and highlights implications for the way we make decisions and forecasts in the presence of uncertainty.
Preliminary work on the development of measures appropriate for the safety domain is reported. Me... more Preliminary work on the development of measures appropriate for the safety domain is reported. Measures are expressed in the style of the Practical Software and Systems Measurement (PSM) approach, a programme sponsored by the US DoD. Proposed measures are integrated with the PSM measurement framework. Reported work has been informed by discussions within the PSM community and by concurrent work on the safety extensions to CMMISM, derived from the +SAFE safety extensions project, sponsored by the Australian Department of Defence. The paper discusses the background to the work, locates it within a measurement framework for the safety domain and proposes a set of measures, with justifications. The paper closes with an assessment of progress in safety measurement and identifies areas needing further work.
1st IET International Conference on System Safety, 2006
ABSTRACT The need for measurement to support the development and operation of safety-and security... more ABSTRACT The need for measurement to support the development and operation of safety-and security-critical systems is being increasingly recognised, and there is a growing body of reported work. Management Systems are required by applicable standards in both fields, with implied codification and quantification, where appropriate. This paper summarises an on-going effort to apply a systematic measurement method to these properties. Work draws on the measurement framework of ISO/IEC 15939:2002, and the supporting materials of the Practical Systems and Software (PSM) project.