This document defines key terms related to competency-based assessment. It explains that competency refers to the knowledge, skills, and attitudes required to perform effectively in the workplace. Competency standards define the competencies needed for a job and comprise units of competency, which specify discrete functions and form the basis for training and assessment. Competency assessment involves collecting evidence to determine if a person demonstrates the required competencies. The document also distinguishes between basic, common, and core competencies.