Identify the correct statements about the spiral model. A. The spiral model is…

Concept

A software process model is classified by the rule that drives its life-cycle decisions. The spiral model is a risk-driven process-model generator: each cycle uses risk to choose the next activities, and the cycle grows the system progressively. Its cyclic structure and anchor-point milestones are defining features; incremental delivery may occur, but that does not make it the standard incremental process model.

Application

• The claim that the spiral model is an incremental process model is not accepted in this classification. Incremental development can be selected within a spiral, but the spiral itself is classified as a risk-driven process-model generator.

• The risk-driven claim matches the model: risk identification and resolution determine what is done in each cycle.

• The acyclic claim conflicts with the model because spiral development repeatedly follows cycles.

• The anchor-point claim matches the model. Life-Cycle Objectives, Life-Cycle Architecture, and Initial Operational Capability are the three commitment milestones.

Contrast

• A & B Only combines the incremental-process classification with the risk-driven characteristic, so it retains the classification mismatch.

• B & C Only combines the risk-driven characteristic with an acyclic description, which conflicts with the model’s cyclic structure.

• A & D Only combines the incremental-process classification with anchor-point milestones, so it retains the classification mismatch.

• B & D Only combines the risk-driven characteristic with anchor-point milestones, the two accepted statements.

Cross-check

The NTA final answer key for source Question ID 3767491644 marks the answer whose text is B & D Only.

Therefore, the answer is B & D Only.