As you pointed out, good objectives are measurable, and a way to tell whether an objective is measurable or not is to ask whether it's...

As you pointed out, good objectives are measurable, and a way to tell whether an objective is measurable or not is to ask whether it's quantifiable--whether you can put a number on it. However, sometimes we want to establish goals that are more subjective by nature, things such as employee morale or customer satisfaction. How do we turn subjective goals into quantifiable objectives?