Think about why management wants the self-appraisal. Review the self-appraisal that you submitted last year. Examine the job description for your position. Be sure to highlight the ways that you are fulfilling that job description. Look over the company guidelines for writing self-appraisals, focus on the positives and downplay the negatives. Ask for advice from trusted co-workers. Type your self-appraisal in the format required. Many companies provide a form for writing self-appraisals.