In todays industries, New Product Development (NPD) is often the focal point of competition. Companies that are able effectively to develop, produce and introduce new products are the key competitors in markets where variety and time-to-market play an increasingly important role. This examination into the organisation of Integrated Product Development aims to answer the question: Which integration mechanisms lead to effective co-ordination and overlap of New Product Development activities in which situations? The mechanisms, strat egies and goals, knowledge and skills, and organisational arrangements are presented, and their impact on the results of NPD projects and relationships is discussed. An in-depth understanding of the background and theory is provided, using detailed case s tudies to illustrate both the human and organisational issues in practice.