Thread: Integrating IBM Rational Functional Tester (RFT)

I understand that I am reply to a old question. But it would be helpful for future.
QC/ Test Director support batch file execution or execution of command line.
RFT has a command line interface.
So the integration is easy. Just create a batch file (read RFT help for CLI) and invoke the batch file using QC.

For your information
1. Command line interface is the easy way of integrating these cross vendor tools
2. Rational Quality Manager support integration with QTP
3. Ring-Zero is a company which build cross vendor tool integration (primarily IBM and HP)