Open-source-appropriate technology (OSAT) refers to appropriate technology designed in the same fashion as free and open-source software. OSAT refers to, on the one hand, technology designed with special consideration to the environmental, ethical, cultural, social, political, and economic aspects of the community it is intended for. On the other hand, OSAT is developed in the open and licensed in such a way as to allow their designs to be used, modified and distributed freely.