Although outcome is the only one thing, it has hundreds of reaction from all different audience. The audience can like it, dislike it, be excited and be bored. Communication design is really required all of reaction not only in positive ways but negative ways. The reason is various reactions can be the feedback of communication design. Especially, when designers use digital media to design, and when the works need an act from audience, it can be called interaction and it is the one important part of reactions.