The document provides an overview and agenda for a presentation on supply chain development and management of change under the NEC3 construction contract. The presentation covers early warnings, compensation events, and some key points to note. It discusses the NEC3 suite of contracts, core clauses, defined terms, communication protocols, risk registers, programmes, and the early warning process. The early warning process involves notifying issues, instructing a risk reduction meeting to discuss mitigation actions, and updating the risk register.