An employee’s ability to perform the job tasks consistently, precisely, and reliably. Skills can be assessed.
Source: International Association of Drilling Contractors, Competence Assurance-Guidelines for Building a Successful Program Revision April 2015. IADC Guidelines
ability to perform a task or activity with a specific intended outcome acquired through education, training, experience or other means
Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global Standards