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Exploration of complexity in software Reliability

Tsinghua Science and Technology 2007年第S1期12卷 266-269页

作者：褚彦明徐拾义 School of Computer Engineering and Science Shanghai University

Traditionally, timing and the failure rate are the only two factors considered in software reliability formula, which is actually incomplete. Reliability should be redefined as a function of software complexity, test effectiveness, and operating environment. This paper focuses on software complexity with its relation to the soft- ware reliability. Today, many software complexity measurements have been proposed, but most of them treat the reliability model incompletely. This paper proposes a new method which considers a relatively complete view of software reliability including its complexity and test effectiveness of the software being tested.

关键词： software reliability software complexity test effectiveness failure rate

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An empirical study on the complexity, security and maintainability of Ethereum-based decentralized applications (DApps)

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Blockchain(Research and Applications) 2023年第2期4卷 28-40页

作者： Noama Fatima Samreen Manar H.Alalfi Department of Computer Science Toronto Metropolitan UniversityTorontoON M5B 2K3Canada

The Ethereum blockchain’s smart contract is a programmable transaction that performs general-purpose computations and can be executed automatically on the *** this component,blockchain technology(BT)has grown beyond the scope of cryptocurrencies and can now be applicable in various industries other than *** this paper,we investigated the current trends in Ethereum-based decentralized applications(DApps)to be able to categorize and analyze the DApps to measure the complexity of smart contracts behind them,their level of security and their correlation to the maintainability of the *** leveraged the source code analysis,security analysis,and the developmental metadata of the DApps to infer this *** on our findings,we concluded that the maintainability of Ethereum DApps is proportional to the code size,number of functions,and,most importantly,the number of outgoing invocations and statements in the smart contracts.

关键词： Blockchain technology Ethereum smart contracts Code metrics software complexity software security software maintainability Decentralized applications

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A Quantitative Analysis of software Reliability

A Quantitative Analysis of Software Reliability

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第六届中国测试学术会议

作者： Shiyi Xu,Peng Xu (School of Computer Engineering and Science,Shanghai University,Shanghai 200072)

＜正＞In this paper,we discuss and analyze the major weaknesses of the software reliability models currently used and then propose a more accurate reliable model of software *** the time being,the assumptions that current software reliability measurement makes seem a bit too perfect and do not address the complexity of most sotfware,the effectiveness of test suite,and the environment with which software was tested,resulting in inaccuracy or even incorrectness in evaluating the software *** central idea of the strategies proposed in this paper is to rationally incorporate some significant factors such as software complexity and the test effectiveness into the software reliability models so as to make the software reliability models more adequate and accurate to the real world.A new reliability model is proposed,and the results from substantial experiments have shown the rationality and accuracy of the new model.

关键词： software Reliability Models Reliability Measurements software complexity Test Effectiveness Synthesis Reliability Model

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