This document outlines Nesta's approach to innovation which includes 7 stages: 1) research and analysis through various methods to understand problems, 2) ideation and creative thinking through crowdsourcing and design tools, 3) experimentation through rapid prototyping and testing, 4) business case development to validate ideas, 5) replication to scale impact, 6) scaling up successful solutions, and 7) creating systemic impact through changed behaviors, laws, markets and interactions. The stages involve various techniques like ethnography, challenges, randomized controlled trials and organizational growth.