SMART goals

SMART is a well-established tool that you can use to plan and achieve your goals. While there are a number of interpretations of the acronym's meaning, the most common one is that goals should be:

Specific, Measurable, Achievable, Relevant, and Time-bound. 

When you use SMART, you can create clear, attainable and meaningful goals, and develop the motivation, action plan, and support needed to achieve them.

source: https://www.mindtools.com/pages/article/smart-goals.htm