Achieving Software Quality Using Defect Filters
The concept of defect filters is a powerful one that many others have written about in the past. Michael Fagan is credited by many as a pioneer in…
Read article July 28, 2026Ideas worth carrying forward
Insights
Articles, white papers, and practical lessons from more than four decades in software testing and quality.
Experience is most valuable when it is shared.
Explore Randy’s thinking on test strategy, leadership, certification, automation, AI, and the craft of testing.
From Randy’s desk
Latest writing
Practical observations for testers, test leaders, and organizations that want software quality to create genuine value.
The Hidden Value of Defects
There are many things we can learn from defects, but many people never get past the basic purpose of problem resolution. Here are some of the things that can turn these lumps of coal into diamonds!
Read article July 28, 2026The 20 Most Common Software Problems
After over 30 years of combined software defect analysis performed by ourselves and colleagues, we have identified 20 common software problems. These common software problems appear in a wide variety of applications and environments, but are especially common in dirty systems.
Read article July 27, 2026