MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Answer and Explanation: The spiral model has two dimensions namely c) radial and angular. The spiral model uses iterations with spirals.

Detailed explanation-2: -Radial, angular are the two types of dimensions of the spiral model.

Detailed explanation-3: -Explanation: The radial dimension of the model represents the cumulative costs and the angular dimension represents the progress made in completing each cycle. Each loop of the spiral from X-axis clockwise through 360^o represents one phase.

Detailed explanation-4: -At any point, the Radius of the spiral represents the expenses(cost) of the project so far, and the angular dimension represents the progress made so far in the current phase.

Detailed explanation-5: -The spiral model has four phases: Planning, Design, Construct and Evaluation. A software project repeatedly passes through these phases in iterations (called Spirals in this model).