Which black box testing technique is applicable across all testing levels?
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Answer: C. Equivalence partitioning
Explanation
Equivalence partitioning is a black-box technique applicable at all levels of software testing. It divides input data into valid and invalid partitions to reduce total test cases. This technique works effectively from unit testing up through system and acceptance testing. Black-box techniques test software functionality without inspecting internal code logic. Equivalence partitioning assumes behavior is similar for all inputs within a single partition. Reducing redundant test cases saves time while maintaining high defect detection rates.
Testers apply equivalence partitioning to input forms to test boundary conditions efficiently. Automated test suites use partitioned data sets to maximize coverage with minimal runs. Using standard black-box methods improves testing thoroughness across different project types. Acceptance testing is a specific testing level rather than a general technique for all levels. Regression testing reruns existing tests after code changes to ensure nothing broke. Quality assurance is an overarching discipline rather than a specific black-box test technique.
- Subject
- Computer Science
- Category
- Software Engineering
- Topic
- —
- Difficulty
- medium
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