What are the specifications needed to ensure adequate system functionality called?

The term that accurately describes the specifications needed to ensure adequate system functionality is performance requirements. Performance requirements detail the expected metrics and standards that a system must meet to function correctly, including aspects such as response times, throughput, latency, and resource utilization. These specifications are crucial for assessing whether a system can handle the intended workload effectively.

While system specifications could encompass a broader range of details about the system, performance requirements are specifically focused on the performance aspects necessary for adequate operation. Resource requirements focus on the specific resources (e.g., CPU, memory, storage) needed to meet the performance requirements but do not define how those resources translate into functional performance. Operational guidelines provide instructions for how to operate a system but do not serve as a measure of its functional performance. Thus, performance requirements provide a clear and necessary framework for evaluating and ensuring a system's operational effectiveness.