Identify the correct statements from the following regarding spiral model. A. Spiral model is an incremental process model. B. Spiral model is a risk - driven process mode. C. Spiral model is an acyclic balancing approach. D. Spiral model involves a set of anchor point milestone. Choose the correct answer from the options given below:
B & D Only
Boehm's spiral model, as presented by Pressman, is an evolutionary software process model that couples the iterative nature of prototyping with the controlled, systematic aspects of the waterfall model. Boehm describes it as a risk-driven process model generator with two distinguishing features.
B. True. Risk analysis drives each loop of the spiral: in every circuit the team identifies and resolves the highest risks before committing to further development.
D. True. The second distinguishing feature is a set of anchor point milestones (life-cycle objectives, life-cycle architecture, initial operational capability) that ensure stakeholder commitment to feasible and mutually satisfactory solutions.
C. False. The first distinguishing feature is a cyclic approach for incrementally growing a system's degree of definition and implementation while decreasing its degree of risk, so calling it acyclic contradicts the model.
A. Not correct as stated: the spiral is classed with evolutionary process models, distinct from the incremental model, which delivers planned functional increments in a linear sequence.
B & D Only option is correct.
Similar Questions
Assume that the software team defines a project risk with 80% probability of occurrence of risk in the following manner :
Only 70 percent of the software components scheduled for reuse will be integrated into the application and the remaining functionality will have to be custom developed. If 60 reusable components were planned with average component size as 100 LOC and software engineering cost for each LOC as \(\$\) 14, then the risk exposure would be
Important Questions from Spiral - Teaching
Which statement(s) is/are false?
P: The Cleanroom software-engineering methodology for high reliability uses incremental software development.
Q: Clean-room reimplementation, with implementers separated from the original source code, is a technique for reducing unconscious copying of that code.
Choose the correct answer from the code given below.
Assume that the software team defines a project risk with 80% probability of occurrence of risk in the following manner :
Only 70 percent of the software components scheduled for reuse will be integrated into the application and the remaining functionality will have to be custom developed. If 60 reusable components were planned with average component size as 100 LOC and software engineering cost for each LOC as \(\$\) 14, then the risk exposure would be
Spiral model of software development is also known as ______.
___________ model couples the iterative nature of the prototyping with the controlled and systematic aspects of the linear sequential model.
