Glossary

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z - 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - All

Term	Meaning
Rehabilitation	Structural intervention such as repair and/or upgrading of an existing structure to reach compliance with required structural performance, generally without restriction upon the materials or methods employed.
Reliability-based performance assessment	Assessment executed by full-probabilistic approach (e.g. FORM or Monte Carlo) where reliability of a structure is be verified in terms of failure probability Pf (or the reliability index β).1 1 I context of limit state approach, when using the reliability-based assessment, the verification of a structure with respect to a particular limit state is carried out via estimation of the probability of occurrence of failure in a specified reference period and its verification against reliability requirements.
Repair	Intervention taken to improve the condition of a structure by restoring or replacing existing components or elements that have been damaged or deteriorated.
Risk	The effect of uncertainty on objectives, realized as the expected value of all undesirable consequences, combining the probability of event and related consequences.
Risk analysis	Process aimed at determining the level of risk by comprehending the nature of risk and considering the likelihood and the consequences of an undesired event, which involves determination of hazard scenarios, determination of effects and consequences and risk estimation.
Risk assessment	Overall process, aimed at helping to understand uncertainty and the associated risk, which involves establishment of structural engineering context, system definition, hazard and consequence identification, risk analysis, risk evaluation and evaluation of risk treatment options.
Risk management	Coordinated activities to direct and control an organization towards the minimization of occurrence of potential risks.
Risk-based maintenance	Preventive maintenance intended to reduce the probability of failure or noncompliance with the performance requirements, where maintenance resources are assigned to those items that carry the most risk in case of a failure or noncompliance.
Risk-informed performance assessment	Assessment executed with due consideration of the total risks, including loss of lives and injuries, damages to the qualities of the environment, and monetary losses, for the time horizon determined on the basis of the duration of the functionality which the structure shall provide.