Business Motivation Model (BMM) is a specification by the Object Management Group (OMG), current version is 1.3 (2015). BMM can be used to model motivational aspects of the business. BMM concepts can be mapped to ArchiMate (3) concepts. BMM overview is shown in the figure below. BMM overview mapping to ArchiMate concepts is shown in the diagram below.
Source: Business Motivation Model (BMM) mapping to ArchiMate