data stewardship activity user acceptance testing A phase of development where the product is tested in the real world by the intended audience. The experiences of the early users are forwarded back to the developers who make final changes before releasing the product. https://orcid.org/0000-0002-5214-4466 https://orcid.org/0000-0002-7702-4495 https://orcid.org/0000-0003-2687-1982