Software Fault Tolerance Techniques and Implementation phần 4 pdf

... 7, 8, 13, 17, 44 ) 1: − − − − − − − − 4 7 8 13 17 44 2: 4 7 8 13 17 44 3: 4 7 8 13 17 44 Distribute inputs ( 4, 7, 8, 13, 17, 44 )− Figu re 4. 5 Example of N-version program ming implementation. The ... alternate execution; Design Diverse Software Fault Tolerance Techniques % 4 Design Diverse Software Fault Tolerance Techniques Design diverse software...

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... sort Variant 4: Heapsort ( 4, 7, 8, 13, 17, 44 )− − − − − − ( 4, 7, 8, 13, 17, 44 )− ( 4, 7, 8, 13, 17, 44 )−( 4, 7, 8, 13, 17, 44 )− Comparator: ( 4, 7, 8, 13, 17, 44 ) ( 4, 7, 8, 13, 17, 44 ) Set Switch ... failure Comparator: ( 4, 7, 8, 13, 17, 44 ) ( 4, 7, 8, 13, 17, 44 ) − = − Pair agreement (8, 13, 17, 44 )7 ,4, − Comparator: Input (Switch 1, ( 4, 7, 8, 13, 17, 44...

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... horizontal, vertical, and 3 14 Software Fault Tolerance Techniques and Implementation i n sequential (uniprocessor) environment, 2 04 structure and operation, 1 94 syntax, 193 timing errors, 2 04 watchdog timer ... 272 category I, 2 24 27 consensus voter and, 2 94 detection, 22526 dynamic majority voter and, 309 exact majority voter and, 277 fault tolerance techn...

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... 7.2) Basic and classic techniques (Sections 4. 1, 4. 2, 4. 7.1, 5.1, 5.2) AdvancedBasic Advanced decision mechanisms (Sections 7.1 .4 7.1.6, 7.1.8) More complex techniques (Sections 4. 3 4. 6, 4. 7.2 4. 7 .4, ... properties of integrity, availability, and confidentiality. 6 Software Fault Tolerance Techniques and Implementation Fault forecasting Fault removal Fau...

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... influence on software diversity most affect a reduction in the likelihood of common mode failures. The collection of a 34 Software Fault Tolerance Techniques and Implementation hardware fault tolerance. ... a system in itself [60]. • Many details of their implementation are made transparent to the users. 44 Software Fault Tolerance Techniques and Implementatio...

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... Solvers, in Software Fault Tolerance Using Data Diversity, Univ. of Virginia, Tech. Report No. UVA/528 344 /CS92/101, for NASA LaRC, July 1991. 56 Software Fault Tolerance Techniques and Implementation TEAMFLY ... non -fault- tolerant software, but are presented here primarily in the context of software fault tolerance in concurrent systems. 76 Software Fault...

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... re 4. 13 Example of acceptance voting implementation. Design Diverse Software Fault Tolerance Techniques 175 Table 4. 14 Software Fault Tole rance Tech nique Over heads for Tolerance of One Fault ... Experimental Validation of Six Fault Tolerant Software Reliability Models, Proceedings of FTCS- 14, 19 84, pp. 102107. 1 84 Software Fault Tolerance Technique...

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... Order) Total Time Comment A 1-2-3 -4- 5 7 .4 MCR B 1-2-5 -4- 3 7 .4 MCR C 1-3-5 -4- 2 9.7  D 1-3-2-5 -4 10.2  E 1 -4- 5-2-3 10.7  F 1 -4- 3-2-5 9.6  G 1-5-2-3 -4 8.2  H 1-5 -4- 3-2 8.8  ... the performance of software fault tolerance techniques in general (discussed in Chapters 2 and 3) and the dependability of specific techniques themselves. Table 4. 2 (in Section...

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... Ø 6 44 44 Ø The results do not match. • The executive now waits for the result of the slowest variant to com- plete execution. 242 Software Fault Tolerance Techniques and Implementation 6 .4. 3 ... that 260 Software Fault Tolerance Techniques and Implementation 6 Other Software Fault Tolerance Techniques New techniques are often proposed to overcome the lim...

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... failure for most software fault tolerance techniques, so they should be designed and developed to be highly reliable, effective, and efficient. 270 Software Fault Tolerance Techniques and Implementation Voter AT Hybrid, other Adjudicator Majority ... Structures: Improving Software Fault Tolerance,  IEEE Transactions on Software Engineering, Vol. SE-6, No. 6, 199...

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