Roles can be classified by socio-technical level pico, micro, meso and macro.

People in each of these roles perform the typical interactions in industry or governance.

Each role-page, for instance teacher or farmer will also include links to the ISIC sector maps in which there is guidance for that sector and role, or to the government function map in which the role matters.

The meaning of pico, micro, meso and macro, and implications for development are explained at Social architecture.

Social actors in the Actor Atlas