A round-robin defines a useful protocol in challenging cases where the science is not yet understood. Everybody gets the same answer using the same protocol proving that the test is robust.

Anything leaving room for interpretation in a protocol is identified by the round-robin process via a total process of evaluation and comparison of results obtained by the different partners.

Stakeholders, agencies, industry and NGOs tend to trust round-robins, as it is a neutral process, free from bias.