A section is a cut through the 3d-model. An elevation is different. It shows the face of something, or perhaps more correct, the projection of an object/s to a plane.
Project Definition: Establishing Scope, Vision and Work Effort. In order to have any realistic shot at a successful project, (delivered on time and on budget) the overall vision and work effort must first be fully defined --- i.e. broken down into small, manageable and actionable parts.
Definition of a Project. 1  Sequence of tasks. 2  Planned from beginning to end. 3  Bounded by time, resources, & required results.  Defined outcome and 1  deliverables. Deadline. 2  Budget. limits number of people, supplies, and capital.