1) It can help to reduce the appraisal cost, then the internal loss cost and external loss cost disappeared.

2) Under the costs of prevention, appraisal cost, internal loss, external loss 4 two subjects.

3) Classics appraisal does not belong to unskillful and faulty medical or surgical treatment, appraisal cost pays by the party that offers malpractice dispute to process application.

4) Be like bilateral party to entrust technical appraisement of unskillful and faulty medical or surgical treatment jointly, talk things over by bilateral party beforehand pay appraisal cost.

5) Quality cost is the cost which is needed to keep product quality at the given level, it includes prevention cost, appraisal cost, internal losing cost and external losing cost.