Reading instructions for UML descriptions and diagrams

Datahub’s business processes are depicted in activity diagrams. The flow of the market processes is depicted using sequence diagrams. The data content of reports and other descriptions of data models are depicted using class diagrams.

When looking at the diagrams, remember that although UML notation is largely standardized, this does not mean that UML models are completely closed to interpretation. Large entities can always be modelled from various perspectives, and UML is often used for a wide range of applications (e.g., software development vs. business processes), which require different interpretations. Some individual diagrams in particular may only present a part of the background entity. There are always a number of alternative methods for presenting, and there is always room for interpretation. The aim is not the highest level of orthodoxy from a UML-technical specification viewpoint.