On a scale of 1-100, how important the required level of knowledge, skill, or ability is to the performance in an occupation.

Typically Importance and Level are similar, but there are cases where they differ: for example a Registered Nurse’s knowledge of medicine and dentistry. They don’t need to know everything about the topic, but what they do need to know is very important to their job. This manifests with a “64 out of 100” in terms of their Level of knowledge, but the Importance of having that knowledge is scored “84 out of 100.”

By comparing Importance and Level across all occupations, we can view similar occupations based on overlap between the two.

Source: O*NET Database.