Using Archimate, we also need informal representation like used by IT4IT Reference Architecture.
It would be great to add a circle object that would allow to create such representation
[Informal Architecture](/IT4IT Incident.png)
You should be able to do that using the Specialization Plugin (https://github.com/archi-contribs/specialization-plugin) to specialize an Application Event or a Data Object, either being embedded in function
Indeed, I evaluate that option, but it is not possible to specialize a Data Object with another icon like a circle. The option is not present for Data Object. :-\