The Practical Guide to Defect Prevention

Conclusion

Some of the major causes of low quality are insufficient focus on the customer from the start, late verification of whether a design matches a conceptual model used by customers, and habits reinforced by your organization’s culture and values. Metrics for quality can be difficult to determine because it is hard to measure potential number of defects averted as opposed to defects detected. Many improvements can be made by examining your metrics and rewards and how they may actually work against a quality culture.

There are two kinds of defects: customer-perceived and security. The first are important in relation to their probability of discovery by customers, and testing customer scenarios is a good means to discover them. The second ...