Models are an initial useful starting point and can assist in a more structured and ordered approach to the planning of events. There is no one model which fits all. It is for the event organizer to perhaps select and engage with a model he / she finds useful, and one which they can understand, share with their colleagues / stakeholders and add to or detract from. These models are not set in stone, they need to be reviewed, but they may well assist as a reference point. As a visual representation of the key areas of the event planning.