History
As interest in fault tolerance and system reliability increased in the 1960s and 1970s, dependability came to be a measure of as measures of ] came to encompass additional measures like safety and integrity. In the early 1980s, Jean-Claude Laprie thus chose dependability as the term to encompass studies of fault tolerance and system reliability without the extension of meaning inherent in reliability.
The field of dependability has evolved from these beginnings to be an internationally active field of research fostered by a number of prominent international conferences, notably the International Conference on Dependable Systems and Networks, the International Symposium on Reliable Distributed Systems and the International Symposium on Software Reliability Engineering.
Dependability for a system incorporates the following attributes or unfunctional requirements:
- Availability: readiness for correct service
- Reliability: continuity of correct service
- Maintainability: to undergo modifications and repairs
and combines them with the concepts of threats and failures to create dependability.
Since the 1980s, safety and security have been added to measures of dependability. \
Read more about this topic: Dependability
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