On average, it takes three to four instances of seeing promotional materials in order for it to "register" with the targeted audience. Therefore, when beginning a promotional campaign, it is important to start with a description of the variety of materials that will be involved in the campaign and to develop a system, or an overall design theme that will unify the pieces. This system was for promotion of an event for the Navy referred to as the 2008 Navy Opportunity Forum^®. The system utilized rich colors and imagery to represent the four primary Systems Command: NAVAIR, NAVSEA, SPAWAR, and MARCOR.