The diagram aspects mechanism identifies whether or not the aspect name and name of the stereotypes applied for the parts and ports (or their types) match. The stereotype name must contain a matching aspect name. For example, a diagram aspect name is Electrical, which matches a port stereotype name WElectrical. When these conditions are met, you can display only the Electrical part of your model in the Composite Structure Diagram. How to display parts and port according to aspect >>
If the diagram aspect name doesn't match the name of the part/port stereotype or its type, you can create a custom stereotype with the same name as the aspect's and apply it for parts and ports. Or you can create a custom diagram aspect.
