The Parasoft Service Virtualization product is very user friendly. While there are other products in the market that achieve similar results, most all are highly technical and require a fully technical background to execute. Parasoft's product is easier to operate, and drives the user to make the right decisions and complete the work efficiently. I'm not at all implicating that the product is not technical, because if you are a technical engineer with the background in scripting and working with such products, you can go 'under the hood' of the front end user interface and be as technical with Parasoft as any of their competitors. I would have to say that the Environment Manager (EM) component is one of the cleanest, easiest, and most impacting part of the application. The graphical interface of the EM screen allows you to setup and configure a blueprint of your environments and within this same application, you can setup the EM screen to drive the activation/deactivation of the virtualized components. With one simple click, you can run the LIVE application/environment, or you can run the virtual instance, or you can drive the application to return positive or negative results. You can also determine a delay (which is perfect for Performance Testing) to enable the virtualized response to wait X seconds to respond. You can even set it to respond in random seconds. The whole EM component gives a feel that you are behind the wheel, and you can see the whole road. Kudos to Parasoft for implementing this as part of their virtualization and SOATest solutions.