Costs of Software Development defects

Research facts

Effort to find and fix
Amount of avoidable rework
Defects causing rework
Modules contributing defects
Defects contributing downtime
Contribution of peer reviews
Contribution of perspective-based reviews
Contribution of disciplined personal practices
Cost of high-dependability
Software quality at delivery

How Complex Systems Fail

Who is responsible
How do we detect risky areas
Software Fallacies