Framework for estimating reliability of COTS component based upon Hierarchical Model for Reliability Estimation (HMRE)
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Abstract
Framework for estimating reliability of COTS component based upon Hierarchical Model for Reliability Estimation (HMRE)Component Based Software System (CBSS) is an emerging approach for building complex software. It is made up of COTS component which is build by third party. It creates independent and pre- defined components and then integrates these components according to customers need to make a new whole software system. There are so many available COTS component in the market. Reliability is one of the most important quality attribute of the software. The main task for developer or integrator is how to select the COTS component which is highly reliable. There is large number of criteria for estimating reliability which includes component usage ratio, reusability, application complexity, operational profile, component dependency. In this paper, these five criteria are reviewed and a new framework Hierarchical Model for Reliability Estimation (HMRE) is proposed. This model selects the reliability criteria and estimates the reliability of COTS component. The application of this framework is illustrated by an example.
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