"Key attributes" refers to the most important characteristics or qualities of something or someone. These attributes are seen as crucial or essential in defining or describing the thing or person.
The executive summary is next, which identifies key attributes of the job seeker. (resume-resource.com)
If control, autonomy, and independence in corporate governance are key attributes for you, then non-profit status is not well - suited to your purposes. (rocketlawyer.com)