skilled

adj. proficient, expert, adept, dexterous; requiring special training, requiring a high level of skill

v. train a worker to execute a specific task; be important, matter, be significant; help, be useful, avail

A skill is the learnt capacity or talent to carry out pre-determined results often with the minimum outlay of time energy or both Examples include:Academic skillsReadingLogicCritical ReasoningInterpersonal communicationSpeech: listening, talking Nonverbal communicationLiteracy: writing, readingMotor skillsWalking, arts and crafts, craft, sportSkilled laborInnovation Skills
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Adjective
1. having or showing or requiring special skill; "only the most skilled gymnasts make an Olympic team"; "a skilled surgeon has many years of training and experience"; "a skilled reconstruction of her damaged elbow"; "a skilled trade"
(antonym) unskilled
(similar) accomplished, complete
(see-also) competent

(a.)
Having familiar knowledge united with readiness and dexterity in its application; familiarly acquainted with; expert; skillful; -- often followed by in; as, a person skilled in drawing or geometry.
  

A user that is comfortable using the product to perform job tasks (average user).