Information Concept Element
It is quite common practice to model an information concept with the Business Object element. An information concept can be seen as a specialisation of a Business Object with every information concept being a Business Object but not every Business Object being an information concept. Moreover one might have to model an information concept representing information about a Business Object that is not an information concept. I typically solve the whole issue with stereotyping or with specialisation through a tool. But a key concept like Information Concept (which is conceptual and completely detached from IT implementation) deserves to be part of the ArchiMate standaard. Without, ArchiMate does not provide anything for information architecture.