Queries regarding Oracle Siebel Testing

I am new to Oracle Siebel testing. I have read about Oracle Application Testing Suite which can be used for testing Siebel. Also, I read about Open UI which discusses regarding Siebel testing.

I have gone through Oracle videos regarding application testing suite and found below which can be used for Siebel testing: 1. Oracle functional testing (OFT) using openscript 2. Oracle Load and performance testing

I have went through following links: http://ift.tt/1h5ymK0 http://ift.tt/1lZ92ww http://ift.tt/1XJp8pQ http://ift.tt/1lZ93AC

I have below queries :

1. Is there any other efficient way of testing Siebel application or is ATS best way to start for Siebel.

2. Also, what are the frameworks which can be used in ATS ?

3. IS there sample ATS framework available for Siebel?

4. Is there any guide or walk-through available which can help in doing a POC for it ?

Please help.

Thanks in advance