There is a growing awareness in the UK construction industry that the development of integrated supply chains and construction processes is potentially the means by which the industry will prosper in the twenty-first century. One of the principal mechanisms identified to achieve this goal is the early involvement of the construction supply chain in the design and construction process. This Digest describes the benefits to be obtained by implementing early involvement, gives guidance on how best to facilitate it and explains the methodology and tools required. 12 pages.