The Spiral Model of the software development process (B.W. Boehm, A Spiral Model of Software
Development and Enhancement, IEEE Computer, May, 1988) uses the following metric relative to
the spiral:
A.
The angular dimension represents cumulative cost
B.
The radial dimension represents cumulative cost
C.
The radial dimension represents progress made in completing each cycle
D.
The radial dimension represents the cost of each phase
Explanation:
The radial dimension represents cumulative cost and the angular dimension represents progress
made in completing each cycle of the spiral. The spiral model is actually a meta-model for software
development processes. Asummary of the stages in the spiral is as follows: The spiral begins in the
top, left-hand quadrant by determining the objectives of the portion of the product being
developed, the alternative means of implementing this portion of the product, and the constraints
imposed on the application of the alternatives. Next, the risks of the alternatives are evaluated
based on the objectives and constraints. Following this step, the relative balances of the perceived
risks are determined. The spiral then proceeds to the lower right-hand quadrant where the
development phases of the projects begin. A major review completes each cycle and then the
process begins anew for succeeding phases of the project. Typical succeeding phases are software
product design, integration and test plan development, additional risk analyses, operational
prototype, detailed design, code, unit test, acceptance test, and implementation. The other answers
are distracters.