UML versus ArchiMate

[Viking]

Probably I am too UML-biased. But in the UML-world my impression is that you are expected to use exactly the prescribed viewpoints. There are reasons. One reason is automatic code generation.

I like Geert's response.
First decide what your world looks like, and what parts of it you want to put into EA.
Only then look at what the Wise People have produced, to see if you have missed something.

[Viking]

I am also a user. But I want to know what I am doing. I suppose other users think similarly. And probably they already found out reasons. That's why I ask them, too.

Ask them, not EA users. There's an official page for Archimate.

LMGTFY: http://www.opengroup.org/subjectareas/enterprise/archimate

q.