Cheevos is an app to let people award custom achivements (Cheevos) to their friends and colleages.
Users are grouped together into Organizations. An organization represents a boundary for cheevos. Every cheevo is owned by a single organization and can only be awarded to members of that organization by the members of that same organization.
Users can be members of multiple organizations and collect cheevos from all of them, but the cheevos are tied to their status as members of that organization. If they are removed from the organization in the future, the cheevos they received from the organization are also removed.