Definitions Edit

Data Edit

Reliability means that

data are reasonably complete and accurate, meet your intended purposes, and are not subject to inappropriate alteration.[1]

General Edit

Reliability is "the property of leading to consistent intended behaviour and results."[2]

Service Edit

Reliability is

the probability that a service will perform its required function for a specified period of time under stated conditions.[3]

System Edit

Reliability is

the likelihood that a system will perform its intended function within the context it was designed to operate within.[4]
[t]he ability of a system or component to perform its required functions under stated conditions for a specified period of time. It is often measured as a probability of failure or a measure of availability.[5]
the ability of a system and its parts to perform its mission without failure degradation, or demand on the support system.[6]
the ability of a system to perform and maintain its functions in routine circumstances as well as hostile or unexpected circumstances.[7]

Overview (Data) Edit

A decision that computer-processed data are reliable does not necessarily mean that the data are error-free. Errors are considered acceptable in this circumstance: You have assessed the associated risk and conclude that the errors are not substantial enough to cause a reasonable person, aware of the errors, to doubt a finding, conclusion, or recommendation based on the data.

Overview (Service) Edit

Reliability focuses on a system's ability to perform as intended, despite apparently random hardware and software failures.

References Edit

  1. Assessing the Reliability of Computer-Processed Data, at 4.
  2. Commission for the Protection of Privacy, Glossary (full-text).
  3. GAO, Information Security: Continued Action Needed to Improve Software Patch Management Processes, at 29 n.23.
  4. Availability and Robustness of Electronic Communications Infrastructures, at 136.
  5. NIST Framework and Roadmap for Smart Grid Interoperability Standards, Release 2.0, at 23.
  6. Unified Capabilities, Framework 2013, App. C, at C-40 (full-text).
  7. Common Cybersecurity Vulnerabilities in Industrial Control Systems, at 67.

See also Edit

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