At Demo 08, StackSafe introduced its Test Center, which it claims is the first virtualized staging and testing solution for IT operations. According to the company, 65 percent of companies software changes the major cause of downtime, noting that changes after often not tested prior to deployment to production environments. It's the "patch and pray" approach. StackSafe imports live software systems into a virtualized sandbox to run a battery of tests on proposed changes for unexpected failures, interoperability issues, anomalies and performance problems. StackSafe Test Center is priced at $50,000 per installation, targeting companies with 1,000 or more employees and more than 100 servers, said Jonah Paransky, vice president of marketing at the company.