... local contexts is a complex process because of the inherent trade-offs among socio-economic, environmental and technical as well as functional factors. In order to fulfill conflicting yet complementary ... in developing countries leads to the selection of inappropriate technology in terms of the local climatic and physical conditions, financial and human resource capabilities, and social or cultural ... unhygienic due to limited area, lack of capital investment, and the local custom of using improperly composted excreta for agricultural production. Public toilets in schools, markets, and medical...