Diagnostic indicators are measurable factors used to assess the health or performance of a system, organization, or individual. They provide objective data that can help identify issues, track progress, and inform decision-making. Common examples include blood pressure in medical assessments or key performance indicators (KPIs) in business settings. These indicators can be quantitative, like numerical values, or qualitative, such as descriptive observations. By analyzing diagnostic indicators, professionals can pinpoint areas needing improvement and develop targeted strategies to enhance overall effectiveness and well-being.