There are many approaches determining the cost benefit or return-on-investment of implementing an automated regression testing solution. It is very important to note that there are many compelling benefits for implementing test automation and some of these benefits are soft and difficult to measure.
Releasing a poor integration can bear negative financial consequences in addition to the political consequences to the departments deemed responsible within the organization. Several formulas clearly demonstrate that using automated testing early and often can within a relatively short time frame show a return on the initial investment.Implementing automation frees staff to work on other activities or projects. Every script that is automated is one less script that must be manually tested, however both manual and automated test scripts must be maintained.Defects are least expensive to repair early in the integration lifecycle and become more expensive as the application nears deployment. 
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