What is a suitable test approach for a high-risk item?

The choice of decision table testing for system testing in conjunction with decision testing for component testing is especially suitable for high-risk items due to its ability to identify different combinations of inputs and their corresponding outputs. High-risk items often involve complex decision-making scenarios, where different conditions may lead to various outcomes. Decision table testing is an effective method in such cases because it provides a concise way to represent and analyze various decision paths based on multiple input conditions.

By using decision testing at the component level, the tester focuses on evaluating individual conditions and the decisions made based on those conditions, confirming that all logical branches have been executed correctly. This isolates the decision logic and helps ensure that critical components function as expected.

This combined approach allows for thorough examination of both components and the overall system, ensuring that high-risk areas are evaluated rigorously. It enhances test coverage for scenarios that might otherwise be overlooked, thereby reducing the likelihood of defects in risk-prone areas.