This book details the development and evaluation of technological interventions designed to improve human and economic development within complex, low-resource settings, showing that a solution becomes an innovation when it reaches widespread use. The book shortens the time-gap between development and up-take of the intervention, especially for student solution-developers or innovators who are new to the cultural and geopolitical settings of the problem-source country or region. Technological interventions in development are sustainable if they meet a real need, are affordable by the users, fit within the cultural context and are ergonomically appropriate. Many interventions have failed because of inattentiveness to one or more of these factors. Each of the book's points is backed up with scholarly research work, confidently guiding solution-developers confronted with issues such as acquiring intellectual property protections, among many others.