Getting RQM artifact details using RQM Reportable REST / OSLC API

Hi Chandrahasa,

Wrt your 1st question:
I confirm you get information on both ways (Reportable REST API and OSLC).
You could check this post for technical details on how to operate on RQM artefacts on both ways: http://sleroyblog.wordpress.com/2013/04/09/querying-rqm-40-through-oslc-and-rest-api/

Now back to your second question (RQM REST APIs vs OSLC QM):
Check https://jazz.net/wiki/bin/view/Main/RqmOslcQmV2Api
  - It will give you a clear idea of what's in OSLC than is not available in RQM REST APIs .
  - Note also you'll find the following "Tip: In general, use the OSLC QM V2 API unless requiring unsupported resources."

Regards,
Stéphane

For more info about how to bridge between OSLC and Reportable REST APIs for RPE reporting read this excellent writeup: https://jazz.net/library/article/1241