Jobs are designed to require many skills which take a long time to learn. People are relied upon to make almost all of the important decisions about how their work will be done. People work in a team where they regularly switch jobs with one another. People do a variety of different things. People do a whole and complete piece of work leading to satisfying an internal or external customer's need.
People see a direct connection between what they do and how the final product or service turns out.
People frequently do almost all of the support work required by their jobs. People control the pace of their own work. People decide what work they want to do. Problem solving is an important part of everyone's job. All jobs require a great deal of thought.