If the informatics nurse is concerned about a computer system's performance during peak access times, the type of testing needed is:

• A. Functional testing
• B. Load/volume testing
• C. Black box testing
• D. System integration testing

Answer: (B)

Evaluating how the system behaves under peak use is about performance testing that focuses on load. This approach simulates the expected number of simultaneous users and data volume to see how response time, throughput, and resource usage hold up. It helps uncover bottlenecks and determine whether hardware, network, or software components need tuning or upgrading to maintain acceptable performance during busy periods. Functional testing checks that features work, but not how the system performs under heavy load; black box testing assesses external behavior without regard to internal structure; system integration testing looks at how subsystems interact, not peak performance. So, load/volume testing is the best fit for assessing performance at peak access times.