Do I Need to Fix a Failed Component Now, or Can I Wait Until Tomorrow?

Calder, Muffy; Sevegnani, Michele

doi:10.1109/edcc.2014.15

2014 Tenth European Dependable Computing Conference 2014

DOI: 10.1109/edcc.2014.15

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Do I Need to Fix a Failed Component Now, or Can I Wait Until Tomorrow?

Muffy Calder

Michele Sevegnani

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2019

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Stochastic Model Checking for Predicting Component Failures and Service Availability

Calder

Sevegnani

2019

IEEE Trans. Dependable and Secure Comput.

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Abstract-When a component fails in a critical communications service, how urgent is a repair? If we repair within 1 hour, 2 hours, or n hours, how does this affect the likelihood of service failure? Can a formal model support assessing the impact, prioritisation, and scheduling of repairs in the event of component failures, and forecasting of maintenance costs? These are some of the questions posed to us by a large organisation and here we report on our experience of developing a stochastic framework based on a discrete space model and temporal logic to answer them. We define and explore both standard steady-state and transient temporal logic properties concerning the likelihood of service failure within certain time bounds, forecasting maintenance costs, and we introduce a new concept of envelopes of behaviour that quantify the effect of the status of lower level components on service availability. The resulting model is highly parameterised and user interaction for experimentation is supported by a lightweight, web-based interface.

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Stochastic Model Checking for Predicting Component Failures and Service Availability

Calder

Sevegnani

2019

IEEE Trans. Dependable and Secure Comput.

Self Cite

View full text Add to dashboard Cite

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Do I Need to Fix a Failed Component Now, or Can I Wait Until Tomorrow?

Cited by 1 publication

References 11 publications

Stochastic Model Checking for Predicting Component Failures and Service Availability

Stochastic Model Checking for Predicting Component Failures and Service Availability

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