Open source appropriate technology

Open source appropriate technology is a type of technology designed to help people in developing countries who don't have access to expensive, high tech items. It is open source because anyone can modify and use it for free. The technology is appropriate because it is designed to work with the resources and skills of the people who use it. For example, an open source printed water pump would be able to be used by people in a rural area who don't have access to electricity or complicated parts and tools.