Marti is a graphic designer. He took a series of courses on basic coding. He used what he learned to solve a big problem for his team. In doing so he demonstrated

In doing so he demonstrated "Competence".

Competence refers to a group of related capacities, responsibilities, information, and aptitudes that empower a man (or an association) to act successfully in a vocation or circumstance.

Competence shows adequacy of information and aptitudes that empower somebody to act in a wide assortment of circumstances. Since each level of obligation has its own prerequisites, skill can happen in any time of a man's life or at any phase of his or her vocation.