The interaction guide developed by pReview is an important component of the system of rules for organising Munich Re online media. The interaction guide defines user interface elements specially standardised for the client, together with rules specifying how these can be combined in their function, contents and structure, and how they can be employed in a targeted manner, whatever their design origins. The function of the interaction guide is to arrange, optimise and standardise the design, organisation and utilisation of applications in online media. The aim is to achieve an efficient and harmonised form of control and communication, so as to generate usage synergies across applications and place information, communication and transactions firmly in the foreground.