In many design organisations responsibility for a project is passed on from one group of people to another. The research chemists develop a process and then pass it on to the process design group who blame the chemists for their ignorance of what is practicable. The project is then passed to the mechanical engineering group who develop the detailed design while the electrical, instrument and other specialized groups add their contributions. The project then passes to the construction team and finally to the team who will start up and operate the plant. These different groups may be in different buildings or places and may rarely or never speak to each other. Many accidents and operating problems have arisen as a result of such "pass the parcel" organisation. Some are described. To avoid these problems representatives of all the various groups should meet regularly as the project progresses. Each group is then able to suggest changes that will make the design easier for them and can comment on features which will increase their costs. Everyone will gain some knowledge of other groups' problems. (C) 2009 Elsevier Ltd. All rights reserved.