Abstract:Chapter 4 Defense-in-Depth Jan-Erik Holmberg, Jan-Erik HolmbergSearch for more papers by this author Jan-Erik Holmberg, Jan-Erik HolmbergSearch for more papers by this author Book Editor(s):Niklas Mol...Chapter 4 Defense-in-Depth Jan-Erik Holmberg, Jan-Erik HolmbergSearch for more papers by this author Jan-Erik Holmberg, Jan-Erik HolmbergSearch for more papers by this author Book Editor(s):Niklas Moller, Niklas MollerSearch for more papers by this authorSven Ove Hansson, Sven Ove HanssonSearch for more papers by this authorJan-Erik Holmberg, Jan-Erik HolmbergSearch for more papers by this authorCarl Rollenhagen, Carl RollenhagenSearch for more papers by this author First published: 15 December 2017 https://doi.org/10.1002/9781119443070.ch4 AboutPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShareShare a linkShare onFacebookTwitterLinked InRedditWechat Abstract Defense-in-depth is a widely applied safety and security principle in all safety-critical technological areas. In a safety management context, defense-in-depth means having more than one protective measure for a given safety objective, such that the objective is achieved even if one of the protective measures fails. The protective measures can be anything from inherent safety features, use of multiple barriers, engineered safety features, principles, and procedures followed in design, construction, operation, maintenance, and decommission of the system. Defense-in-depth also applies such fundamental safety principles as redundancy, diversity, physical separation, principle of successive barriers and reducing consequences, accident prevention and mitigation, and safety classification of systems and functions. Effectiveness of defense-in-depth depends on the capability to (i) minimize the likelihood of holes and hazards in each barrier level and (ii) to minimize the dependencies between barrier levels. One weakness of defense-in-depth is that it can lead to complex design solutions, which is not necessarily optimal from the overall risk assessment point of view. Handbook of Safety Principles RelatedInformationRead More
Publication Year: 2017
Publication Date: 2017-12-15
Language: en
Type: other
Indexed In: ['crossref']
Access and Citation
Cited By Count: 17
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot