TRADITIONAL SOFTWARE DEVELOPMENT PROCESSES - Software Design for Six-Sigma: A Roadmap for Excellence - page 48

TABLE 2.2 ( Continued )

Software
Process Simple and Small Moderate and Medium Complex and Large

V-Model 1. It is resource heavy and very

costly to implement, suited for
large organization and
government projects.
2. The V-Model is not complete
because the activities are done
at too abstract a level. It is hard
to find out whether peer
reviews and inspections are
done in the V-model. It is
difficult to find out whether the
self-assessment activity is
conducted before product is
passedontotheQAfor
acceptance.

V-Model
XT

Defense and Safety
Critical IT Early
Phase of
introduction

1. Defense and Safety Critical IT
Early Phase of introduction.
2. It was introduced in 2006 and
until now mostly used in
Germany in government and
military applications with very
limited information available.

Spiral It is a good approach

for safety-critical
systems, but may
endure very high
cost.

1. Suited for Safety Critical
Systems, but high chance of
becoming extremely costly and
time consuming.
2. This model of development
combines the features of the
Prototyping Model and the
Waterfall Model.
3. The Spiral Model is favored for
large, expensive, and
complicated projects.
4. The entire project can be
aborted if the risk is deemed
too great. Risk factors might
involve development cost
overruns, operating-cost
miscalculation, or any other
factor that could, in the
customer's judgment, result in
a less-than-satisfactory final
product.