The real problemarose when the service jobs also started to go abroad, when every other service company's call centre suddenly seemed to be based in Bangalore, in the middle of India, not Indiana.
Since many innovations represent a solution to a technical problem, this approach often involved determining other industries (or other situations within the same industry) in which a similar problemarose, and then generalizing the description of the innovation so that it could be used in those other industries or situations.
This system arose as a solution to a problem: As business expanded in the Middle Ages, Masters of various crafts could no longer depend on family members to work in the shop.