Architecture-Based Software Reliability Analysis: Overview and Limitations
IEEE Transactions on Dependable and Secure Computing
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Recent IT attacks demonstrated how vulnerable consumers and enterprises are when adopting commercial and widely deployed operating systems, software applications and solutions.Diversity in software applications is fundamental to increase chances of survivability to faults and attacks. Current approaches to diversity are mainly based on the development of multiple versions of the same software, their parallel execution and the usage of votingmechanisms. Because of the high cost, they are used mainly for very critical and special cases.We introduce and discuss an alternative method to ensure diversity for common, widespread software applications without requiring additional resources. We describe a few encouraging results obtained from simulations.