vdoc

Chapter 17: D. Testing Methods 197
• Test the program to see if it does what it is not supposed to do as
well as what it is supposed to do.
• Debug the software to minimize errors.
• Retest for functionality until you reach high precision.
Testing versus Inspection
The objective of inspection is to find all the defects at each stage or process and
to proceed to the next stage or process with zero defects. Inspection methods can
be developed to find more defects earlier and be more effective by using the same
method throughout the entire project. Inspection can also help more in debugging
since it has the ability to find the fault in code while testing only finds failure. One
advantage with testing that it is closer to the way the end user will use the system.
The system will be more reliable by finding the most common failures. You can
test the system by using multiple reruns using the same process of testing. So as
a matter of a fact we can say that inspection and testing complement each other:
they can be used to detect failure in different areas, and are used for different
reasons and in different phases. Inspection is better in initial stages such as design
while testing is better in finding operational defects; both are needed for a better
quality product (Brykczynski et al. 1994) (Daich et al. 1994).
Part III.D.5