In 2014 the Digital Library Federation (DLF) Assessment Interest Group developed a Digital Library Assessment Framework and began engaging the community in the development of best practices and guidelines around digital library assessment. This presentation will address the progress of the interest group in its first year. We will provide background information on the DLF Assessment Interest Group, outline the collaborative methods used to document common practices and to develop best practices, and solicit audience feedback on the group’s methodology and results to date.