What is Self-assessment?

Legal Definition
In social psychology, self-assessment is the process of looking at oneself in order to assess aspects that are important to one's identity. It is one of the motives that drive self-evaluation, along with self-verification and self-enhancement. Sedikides (1993) suggests that the self-assessment motive will prompt people to seek information to confirm their uncertain self-concept rather than their certain self-concept and at the same time people use self-assessment to enhance their certainty of their own self-knowledge. However, the self-assessment motive could be seen as quite different from the other two self-evaluation motives. Unlike the other two motives through self-assessment people are interested in the accuracy of their current self view, rather than improving their self-view. This makes self-assessment the only self-evaluative motive that may cause a person's self-esteem to be damaged.
-- Wikipedia
Legal Definition
1. Management. A process where managers at all levels will evaluate the effectiveness of their own performance across all areas of responsibility to determine if improvements are needed. 2. Taxation. A regime of tax collection where a tax payer has the responsibility of reporting his own tax correctly to a collection agency.