Quality Assurance

214 Quality Assurance

the mistake. The focus should be on identifying the facts and eliminating the

mistake through the appropriate level as shown in Table 15.6.

To approach the defects, we must rst track and evaluate their signi-

cance to the system. Typical traditional tracking is based on the ow of mis-

take → mistake not corrected → defect. Specically, typical mistakes are

identied by

• Quantity

• Kind

• Percentage

TABLE 15.5

Generic Approach of Selecting Appropriate Level of Control

Level 1 Level 2 Level 3 Level 4 Level 5

Type Autonomic

operation

Automatic

control

Self regulation Personal

supervision,

auditing,

inspection

Information

control ...