Most of the distinctions above are pure process differences and do not contain specific content. However, most real-world skills also requires knowledge of content. A geologist needs to know about rocks, chemistry, physics, etc., and a negotiator may need to know about corporate structure, contracts, interest rates, time to develop a product, etc. This content knowledge is essential for the good judgement required in carrying out the process distinctions in your modeling. These are often overlooked in the focus on process, and need to be included as a part of your modeling. For instance, an editor needs to know the letters of the alphabet, and how to read and speak the language involved. Even if it seems totally obvious to you, include required content areas in your modeling description.