They must be built well, because breakdowns frequently mean lost business.
Testing is the obvious way to ensure quality applications.
ComCast Cellular Communications Inc. Purpura needed to be able to make changes quickly to the extranet, which let the vendor's partners talk to ComCast and perform tasks such as activating cellular phones. But every change required more testing. Astra QuickTest works independently of any server or software platform so that tests will work regardless of changes made to the architecture. Purpura mainly used Astra QuickTest to make changes to his Web sites, develop scripts quickly, and make sure the changes he made worked. He also tied these scripts to load-testing scripts to ensure the Web site could support the number of users projected.