The diagram below was produced weekly to show progress in subsea construction and the progress of the FPSO tow to site. A colour coded legend describes the items installed and the current status is provided for all construction vessels involved in the project. The FPSO tow is shown as a bar indicating ports of call and the distance towed and remaining. An incredible amount of data is contained on this single sheet that can be readily understood. With this type of diagram, a slideshow can be constructed showing week on week progress as an alternative, or addition, to an animation. The diagram is constructed using separate layers for each group of components so that updating can be performed in minutes with minimal effort.