Double linking is an organizing principle developed by Gerard Endenburg, a Dutch engineer, as part of the so-called sociocratic circular method. It operates as an extension of Rensis Likert's linking pin. In the sociocratic approach, decision-making is structured in circles. Each circle is connected to the next higher circle by way of the functional leader and a representative chosen in the circle. Both the functional leader and the representative participate in policy decisions taken in the lower as well as higher circle.