The Discipline and Purpose fields are used to classify dynamic views and drawings. For example, in a large multidiscipline infrastructure project you could have hundreds or even thousands of dynamic views and drawings. You can use the Discipline field to classify a design or engineering task, for example, Architectural, Structural, Mechanical, Plumbing, Electrical, and so on. The Purpose field is used to classify the saved view type. The plan view could be a floor plan, presentation plan, demolition plan, framing plan, and so on. With the Purpose field, the plan view’s intended use is clarified.