Introduction to Software Testing

Analogies

• Boiler technology lagged behind improvement in steam engines themselves.
• So, too, software engineering lags behind hardware (electrical) engineering.

What to do?

• Use time-tested, good engineering principles:
• KISS, essential services, testing & verification, double & triple checking, safety engineering principles
• Learn to love computers a little less. Our mistrust is fading and this is a bad thing.
• Therac-25 radiation therapy machine
• Being careful need not stop progress, but we should consider the issues in detail.