My personal view is that these questions are seldom answerable. Therefore, in the Snyder process, this phase seeks instead to determine how performance can be monitored. The performance indicators developed in this phase can then be used to set up feedback loops. In general, the Snyder process does this by finding present indicators of future targets and ideals. Ideals are not evaluable in any real sense.
Indicators are here in the present.
The process for identifying indicators is simple enough. You start with the ideals, and follow them back until you find something present that you can evaluate. As far as possible, I suggest you don't use performance indicators of activities . That assumes that there is one right way to do something. It may well be that different people can achieve outcomes in different ways.