General Principles of Testing

 

Principle 1:

Testing shows the presence of defects, not their absence.

Principle 2:

Exhaustive testing is impossible.

Principle 3:

Testing activities should start as early as possible.

Principle 4:

Defect clustering.

Principle 5:

The pesticide paradox.

Principle 6:

Testing is context dependent.

Principle 7:

No failures means the system is useful is a fallacy.