Some people hate it.. some people cherish it as a means to eternalize their brilliant designs… DOCUMENTING. One way or the other, in the bigger projects you can easily fill up a local library with all the paper produced. That’s why a good solution design is crucial in these projects. If such a design covers 1 system like AX, it’s easier to come to a holistic view on the desired solution. But what if your solution spans across multiple systems, all requiring some installation, configuration and customization. How do you keep the overview without getting lost in the details? For this situation your solution design needs an extra helper: the UML sequence diagram: