Which term describes focusing inspection on the most probable areas by progressively narrowing the search?

• A. Funneling
• B. Broad Testing
• C. Random Sampling
• D. Parallel Testing

Answer: (A)

Funneling is the technique of focusing inspection on the most probable areas by progressively narrowing the search. It works by starting with a broad assessment to spot general problem zones, then directing attention and resources to the areas most likely to contain the issue, and repeating the process as more information becomes available. This approach makes inspections more efficient and quicker to pinpoint faults because effort is concentrated where it’s most likely to pay off.

Broad Testing spreads effort across many areas without narrowing, so it’s slower to localize problems. Random Sampling picks areas without using probability or prior findings, so it doesn’t leverage information to concentrate the search. Parallel Testing runs multiple tests at the same time but still doesn’t imply a stepwise narrowing toward the most probable locations.