Mercury QuickTest Professional ( QTP )

• http://www.mercury.com/us/products/quality-center/functional-testing/quicktest-professional/

Mercury QuickTest Professional™ provides the industry’s best solution for functional test and regression test automation - addressing every major software application and environment. This next-generation automated testing solution deploys the concept of Keyword-driven testing to radically simplify test creation and maintenance. Unique to QuickTest Professional’s Keyword-driven approach, test automation experts have full access to the underlying test and object properties, via an integrated scripting and debugging environment that is round-trip synchronized with the Keyword View.

Also see QTP and Winrunner comparison http://www.mercury.com/us/products/quality-center/functional-testing/comparison.html