Which of the following is most often the focus of testing in an organization with...

In an organization with a mature testing strategy, testing is not treated as a single activity performed near the end of development. Instead, it is integrated throughout the software lifecycle, beginning with requirements reviews and continuing through design, coding, unit testing, integration testing, system testing, acceptance testing, and maintenance. Mature testing emphasizes early defect detection, prevention, risk-based planning, traceability, automation where useful, and continuous feedback. Complete testing is usually impossible for complex systems because all paths, inputs, and states cannot be exhaustively tested. Functional testing alone is too narrow, and testing cannot prove a product is correct in all conditions. Beta testing may help, but mature organizations focus on lifecycle-wide testing.

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