The ArchiMate® 2.1 Specification (published by The Open Group) is an open and independent modelling language that now complements The Open Group Architectural Framework (TOGAF).
An essential skill that all IS/IT architects must have is the ability to communication architectural ideas in a formal way. ArchiMate 2.1 has been designed to address this requirement. It is a lightweight language based on UML, capable of describing all layers of architecture, from Enterprise through to Technology.