
34 • Soware Engineering Reviews and Audits
© 2011 by Taylor & Francis Group, LLC
the increment under contract. At the beginning of each Spiral, the system
performance requirements are rened and risk mitigation activities are
planned. An example of a general Spiral lifecycle is shown in Figure6.2.
e overlap between spirals is notional and will depend upon the specic
program plan. It is possible to have multiple soware prototypes or so-
ware builds within each Spiral, although the intermediate soware builds
will not be formally delivered. ey may be used to inquire user feedback
and for risk reduction.
Within the soware discipline, ther ...