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% of total development faults 60 50 40 30 20 10 0 Life Cycle Phases Key Design faults Logic faults Syntax faults | Introduced O Observed Requirements Technical & Functional Design & Program Design Construction & System Test Acceptance Testing & Operations (Phase 1) (Phase 2) (Phase 3) (Phase 4) During which phase were no faults introduced? A. Phase 1 B. Phase 2 C. Phase 3 D. Phase 4 Support?​

Respuesta :

To determine during which phase no faults were introduced, we need to look at the provided information on the faults introduced during each life cycle phase:

- Phase 1 (Requirements): 60% of total faults

- Phase 2 (Technical & Functional Design): 50% of total faults

- Phase 3 (Program Design & Construction): 40% of total faults

- Phase 4 (System Test & Acceptance Testing): 30% of total faults

Based on the given data, we can see that during Phase 4 (System Test & Acceptance Testing), no faults were introduced as 0% of the total faults were attributed to this phase.

Therefore, the correct answer is:

D. Phase 4