I have no experience in this matter but, from product development cycle, I can pull out few points. R&D and QA may have major conflicts are during revisions of features while prototyping a deceive. R&D’s duty is to innovate and bring about a competitive edge to the company and keep the company in business. However, while in the stage of development, R&D doesn’t fully understand the risk associated with the end user. Furthermore, QA must identify such risks and highlight them during discussions and get a revision of these designs. Hence striking the right balance and compromising on design may serve as a major obstacle between R&D and QA departments.