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A Reliable, Elastic, and Fragile System State Assessment Method

A system state and reliability technology, applied in elastic and brittle system state evaluation and reliability fields, can solve the problem that the test results cannot completely cover the state space

Active Publication Date: 2021-01-26
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the ubiquitous problem of heuristic algorithms that are easy to fall into local optimum, the test results may not completely cover the state space.

Method used

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  • A Reliable, Elastic, and Fragile System State Assessment Method
  • A Reliable, Elastic, and Fragile System State Assessment Method
  • A Reliable, Elastic, and Fragile System State Assessment Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment C1

[0087] Duplicate test cases and test results refer to if two test cases C 1 {P 1 ,P 2 ,...,P m}, C 2 {P 1 ,P 2 ,...,P m} in P 1 ,P 2 ,...,P m The values ​​are correspondingly equal, and their test results are F d with F r are also correspondingly equal, then only one set of influencing factor combinations and test results can be retained. After removing duplicate operations, n(N≥n) test cases are C 1 {P 1 ,P 2 ,...,P m}, C 2 {P 1 ,P 2 ,...,P m},...,C n {P 1 ,P 2 ,...,P m}.

test Embodiment C

[0088] Judging each group of test cases C{P 1 ,P 2 ,...,P m} After acting on the system, the key performance parameter F of the system d and F r Is it in [F 0 -φ, F 0 +φ] range, if F d ∈[F 0 -φ, F 0 +φ], it is considered that the system is reliable under the condition of the combination of influencing factors, and the corresponding combination of influencing factors C{P 1 ,P 2 ,...,P m} label can be set to 0; if and F r ∈[F 0 -φ, F 0 +φ], it is considered that the system is elastic under the condition of the combination of influencing factors, and the corresponding combination of influencing factors C{P 1 ,P 2 ,...,P m} label can be set to 1; if and Then it is considered that the system is brittle under the condition of this combination of influencing factors, and the corresponding combination of influencing factors C{P 1 ,P 2 ,...,P m} label can be set to 2.

[0089] Step 32: standardize the test cases after deduplication, so that the values ​​of each...

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Abstract

The invention discloses a system state evaluation method for reliability, elasticity and brittleness, which includes the following specific steps: Step 1: define the system state evaluation indicators for reliability, elasticity, and brittleness; Step 2: generate test cases and perform system testing , save all test cases and test data; step 3: perform data processing on all test cases and test data; step 4: obtain the system status evaluation of the system under the action of all combinations of influencing factors. The present invention is suitable for predicting the performance state of the system under the action of different influencing factors and the problems that may occur in the next stage when the system is running, and can help system design and maintenance personnel find the weak links and safety thresholds that play a decisive role in system safety And external interference factors, in order to timely prevent and maintain the possible problems of the system in advance, propose countermeasures, and reduce the economic loss caused by the failure of the system to work, which has high practical application value.

Description

technical field [0001] The invention relates to the technical fields of software testing and fault prediction, and more specifically relates to a system state evaluation method for reliability, elasticity and brittleness. Background technique [0002] The traditional system state division generally divides the system into normal state and fault state. People usually refer to the ability of the system to perform the specified function without fault within a certain period of time and under certain conditions as reliability. However, for a complex system, there may be more than two system states. Due to the complexity of the system structure and function and the fault tolerance of the system itself, when the system is disturbed by the outside world or the internal unit fails, it will not cause the system to completely shut down. Instead, there is a state of degraded performance but continued operation. At the same time, the recovery process of the system is not completed in a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/34G06F11/36G06N3/08
CPCG06F11/3409G06F11/3684G06F11/3688G06N3/08
Inventor 杨顺昆姚琪张逸卓苟晓冬邵麒李大庆
Owner BEIHANG UNIV