The informal organization consists of the social structures and relationships that govern how people work together and get work done outside of official job roles and hierarchies. It evolves organically based on changes in the work environment and the dynamics between members. When supported, the informal organization can enhance collaboration, innovation, and problem solving. It is distinct from the formal organization in that it is evolving, grassroots-driven, responsive to change, and based on trust and reciprocity rather than codified rules.