When you size your infrastructure to deploy a new application, you need to not only test and monitor the underlying infrastructure but also test and monitor the application performance.
During the Load Testing run, you should be able to see the application performance metrics to correlate infrastructure and application performance to validate the End User Response Time and Satisfaction. With an integrated solution you will dramatically accelerate root cause analysis from infrastructure ressource analysis to code diagnostic. This is the only way during BUILD Cycles to be User Satisfaction Centric and ensure the best experience when the application will be in production.