Investors constantly seek confidence that boards of directors at portfolio companies are fulfilling their fiduciary responsibilities well. Investors are often left weaving together bits and pieces of outside-in data to get a feel for what might be happening in the boardroom – and to assess how likely the board is to be focused on serving their fiduciary responsibilities. ISS Analytics recognizes this problem, and to address it we continue to build datasets available in ISS DataDesk and methodologies such as ISS QualityScore. In this paper, ISS describes one such model of evaluating outside-in board effectiveness and its measures.