Routledge handbook of integrated project delivery The concept of integrated project delivery (IPD) has evolved as a result of the need for highly expert teams of people to collaborate to deliver extremely complex projects to manage expectations about delivery speed changes in governance standards and to take advantage of and manage expectations raised by rapid advances in technology. All this demands effective change management. This is the first Handbook to contextualise and thematically explore the concept with an emphasis on rigorous practical and theoretical validation Characteristics of IPD : a collaboration framework overview Derek H.T. Walker & Beverley Lloyd Walker The global state of play of IPD Derek Walker & Steve Rowlinson Value from an IPD perspective Steve Rowlinson & Derek Walker.