Quality indicators are categorized as structure, process, or outcome measures based on their focus within the healthcare delivery system.

Option A (Satisfaction): Satisfaction measures patient or staff perceptions (e.g., survey scores), not objective measures like waiting times, which are operational.

Option B (Process): This is the correct answer. Clinic waiting times are a process indicator, as they measure the efficiency of care delivery processes (e.g., patient flow, scheduling). NAHQ CPHQ study materials classify waiting times as a process measure, reflecting how care is delivered.

Option C (Outcome): Outcome indicators measure the results of care (e.g., mortality, infection rates), not the processes leading to those outcomes.

Option D (Structural): Structural indicators focus on resources or infrastructure (e.g., staffing levels, equipment), not operational processes like waiting times.