Definition(s)
Ability
An individual’s knowledge, skills, abilities, and behavioral attributes that enable him or her to perform his or her work consistently, precisely, and reliably.
Source: International Association of Drilling Contractors, Competence Assurance-Guidelines for Building a Successful Program Revision April 2015. IADC Guidelines
Ability
capacity to perform an activity.
Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global Standards