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Interface Errors Are Common

publish date: 2026/06/18 03:56:41.257948 UTC

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Research on software defects has highlighted the prevalence of interface errors. Which statement correctly reflects this finding?

Interface errors only occur in systems written in languages without strong type checking

Interface errors are rare in modern object-oriented systems due to encapsulation

Interface errors are one of the most common forms of error in complex systems

Interface errors account for less than 5% of defects in complex systems

Correct Answer

Interface errors are one of the most common forms of error in complex systems

Explanation

Research (Lutz, 1993) found that interface errors are one of the most common forms of error in complex systems. This is why component interface testing - specifically designed to discover interface misuse, misunderstanding, and timing errors - is a critical part of the development testing process.

Reference

Software Engineering, Ian Sommerville, 10th edition

Quizzes you can take where this question appears

Component Testing and Interface Types