Hi Marco,
as how I see it, project performance appraisal focuses on the overall project rather than only on the individual/team. For instance, evaluation of the project from the schedule's or costs' perspective.
Not sure though if I am right, I hope someone else can contribute here and confirm.
I have a secondary question in this regard: is the Team Performance Assessment also containing the assement of individuals? or this document is only intended for the evaluation of the team as a group.
Thank you very much in advance.
BR,
Ildefonso