According to Tommy Newberry in his book Success is not an Accident. There are 5 criteria to defining your unique definition of success.
They are:
1. Controllable – In your control. Not based on outside circumstances or other people.
2. Measurable – Must be quantifiable so that you can be held accountable.
3. Perpetual – Something you can satisfy on a daily basis.
4. Personal – Get your own! Don’t try to borrow!
5. Principle Based – Your definition of absolute truths, not on subjective, timely, or situational values.