[PDF] Top 20 Assessing the reliability of diverse fault-tolerant software-based systems

... the reliability of a system - fault tolerant or otherwise - is to observe its failure behaviour in (real or simulated) ...the fault-tolerant system as a black box ...indeed ... See full document

... It turns out that, with a Dirichlet prior, the posteriors for the probability of system failure derived via the ‘white- box’ and via the ‘black-box’ methods are identical, no matter what we observed. In other words, ... See full document

... traction, To provide a method for assessing the reliability of oriented software using fuzzy logic- based applications. The fuzzy system has four in- puts and one output. To measure the output ... See full document

... the reliability of a software product: proficiency of developers, effectiveness of tools, effec- tiveness of inspections and debug testing, effects of spec- ification and programming languages, specific ... See full document

... symmetric systems is that if a change in one of the two versions improves its pfd, this does not guarantee improvement of the system pfd, but might even make it worse, if the increase in version reliability ... See full document

... simulated systems their reliability remained ...true reliability of the assessed ...true reliability with a different speed, which results in their prediction accuracy being ...true ... See full document

... proposed fault tolerant techniques based on frequency of interactions, charac- teristics of ...technique based on fre- quency of interactions makes use of interaction values of configurations ... See full document

... approach based on recalibration is somewhat similar to the Bayesian procedure developed in [14] for components with independently distributed pfds, in which the authors use a combination of black-box inference on ... See full document

... multiple-version software, Hatton [1] offers a tentative argument based on: 1) the reliability advantage given by diversity in the Knight-Leveson experiment [2], and 2) the fact that, if versions ... See full document

... on reliability of software used in industrial control ...is based on the view that successful cyber-attacks introduce failure regions, which are not present in non-compromised ...a fault ... See full document

... in reliability as a result of the faults being identified and removed via ...build fault-tolerant systems from diverse versions, the overall system reliability will depend upon ... See full document

... to software fault tolerance consists of a set of diverse program versions called alternates, along with an error detection routine known as the Acceptance Test ... See full document

... have diverse velocities or transforming ...proposed fault tolerant method outflanks both TMR and DMR methods about 35% in ...when reliability of task is important as it can only mask the ... See full document

... by fault detection and fault accommodation delays and their effect on the time of the system’s mission is rarely studied in FTC approaches although it can be very influencing in the performances and control ... See full document

... For critical applications of computers, it is important to demonstrate low enough likelihood that design faults (in particular software faults) cause, in operation, failures with severe consequences. A form of ... See full document

... these reliability assurance techniques, the system may still fail during normal operation due to uncontrollable or undetectable ...digital systems leads to incorporate fault tolerance thereby ... See full document

... In IMABN each source is connected to two multiplexers in each sub-network, and each switch has a conjugate. So if we assume that the IMABN is operational as long as one of the two multiplexers attached to a source (in a ... See full document

... blame tolerant arrangements that their capacity depends on rerouting the ...blame tolerant method which is totally versatile and utilize accessible non-broken ... See full document

... – software may well perform different tasks with different importance, which would justify different degree of testing, hence different rates of failure and repair in the respective ... See full document

... on fault tolerance mechanisms to cope with sensor faults in WSNs can be classified into hardware redundancy, time redundancy and information ...for fault detection or ... See full document