4.5.2 Element Connectivity
Elements may be connected to other elements, where the RelatingElement is of equal or higher priority, is generally constructed first, and/or anchors the RelatedElement.
The following diagram shows the generic classes and relationships used when applying this concept. In addition, concepts may have particular importance to common or standardised industry practices and scenarios. For these specific usage scenarios, the tables below shows a recommended list of general usage patterns that users may adopt.