Goal Setting involves establishing specific, measurable and time-targeted objectives[citation needed].

Goal setting is a major component of personal development literature.

Effective goals should be tangible, specific, realistic and have a time targeted for completion[citation needed]. There must be realistic plans to achieve the intended goal. For example, setting a goal to go to Mars on a shoe string budget is not a realistic goal, while setting a goal to go to Hawaii as a backpacker is a possible goal with possible, realistic plans.

Work on the theory of goal-setting suggests that it's an effective tool for making progress by ensuring that participants in a group with a common goal are clearly aware of what is expected from them if an objective is to be achieved. On a personal level, setting goals is a process that allows people to specify then work towards their own objectives - most commonly with financial or career-based goals[citation needed].

However, some say that much of what is currently taught about goal setting is incomplete.

Prominent speakers on goal setting such as Jim Rohn or Zig Ziglar have suggested that goal setting is more than writing something down, setting a date and working towards that end. In order to make the success or achievement a lasting value the person must become something different in the process. There are significant differences in how a person accopmlishes a "be" goal (Character driven) versus a "Have" goal. (An accomplishment or a possession to obtain.)

Managers cannot be constantly able to drive motivation and keep track of an employee’s work on a continuous basis. Goals are therefore an important tool for managers since goals have the ability to function as a self-regulatory mechanism that acquires an employee a certain amount of guidance [1] have distilled four mechanisms through which goal setting is able to affect individual performance:

Goals focus attention towards goal-relevant activities and away from goal-irrelevant activities.
Goals serve as an energizer; higher goals will induce greater effort while low goals induce lesser effort.
Goals affect persistence; constraints with regard to resources will affect work pace.
Goals activate cognitive knowledge and strategies which allows employees to cope with the situation at hand.
Through an understanding of the effect of goal setting on individual performance organizations are able to use goal setting to benefit organizational performance.[2] have therefore indicated three moderators which indicate the success of goal setting:

Goal commitment 
People will perform better when they are committed to achieve certain goals[citation needed]. Goal commitment is dependent of:
The importance of the expected outcomes of goal attainment and;
Self-efficacy - one's belief that they are able to achieve the goals;
Commitment to others - promises or engagements to others can strongly improve commitment