Clint Sprauve from HP presented on using virtualization to improve the speed and quality of testing. Virtualization can help address challenges from composite applications with many dependencies, the need for high quality with fast release cycles, and proliferation of mobile and cloud services. Service virtualization removes constraints by allowing development and testing to access components without waiting. Network virtualization is also important as network issues can significantly impact performance and capacity. Together, service and network virtualization enable continuous testing across the development life cycle from unit to load testing. This helps accelerate application delivery with more confidence through "shift left" testing.