The types and number of faults covered by a system play a primary role in determining the level of dependability which that system can potentially provide.
However, the motivation behind this solution was to manage service upgrades, i.e. switching from an old version to a new version online when the level of dependability of the new service is acceptable.
It mainly originates from the false impression that the level of dependability achievable by modern information systems is equal to the dependability we experience from consumer products on a daily basis.
This leads to a high level of dependability and safety, eases verification, reduces cost for safety licensing, and conforms particularly well with the safety standard IEC 61508.
For example, if the majority of individual findings have a 'low' level of dependability, this designation should then apply to the resultant synthesised finding.
It discusses the determination of maintenance actions and optimization processes considering a cost criterion, and a specified level of dependability.
Design of self-adaptive software-intensive cyber physical systems (siCPS) operating in dynamic environments is a significant challenge when a sufficient level of dependability is required.
Then, this study determines the minimum reliability requirements of each component, i.e. Mean Time To Failure (MTTF) and Mean Time To Fail Spurious (MTTFspurious) and the optimum design of SIPS for realizing the desired level of dependability and security.
We propose a Trustworthiness Management Framework which, while acting on the behalf of components (Trustors), supervises the system's existing Trustor-Trustee relationships and preserves the overall system level of dependability and security.
This paper discusses reconfiguration aspects of our new programmable and reconfigurable PENCA architecture as the new concept towards dependable fully configurable systems, which promises a combination of reasonable overhead and relatively fast encoding, also ensuring a high level of dependability, while keeping important properties in flexibility, programmability and testability.
How do we achieve the desired level of dependability and security?
