GTT is a GUI testing tool for for Java swing-based applications. GTT offers capture and replay functionalities. In addition, GTT can be applied in a test-driven development style. This is not possible for other CR-based tools.
"Open HMI Tester" is a GUI Testing tool following an open architecture that describes a non intrusive capture/replay tool based on GUI Events. It may be adapted to support different windowing systems and operating systems used in the testing environment.