Identifying how game components will deliver goals is one key part of the design and ideation process. Determining the best way to implement these ideas and, at the same time, identifying other essential functions to create a coherent and usable system is the other essential piece. This is where interactive and information design have important roles to play. Because gamified systems are meant to satisfy external goals as well as goals of engagement, the GS designer has the responsibility of detailing different user experiences for two distinct audiences: the players of the system and the project owners responsible for running, monitoring and overseeing the system once it is up and running. The first group needs to be motivated to play over time and share the experience with friends. The second group is most interested in collecting data and optimizing the system for improvements based on this information. During the design phase, the interactive components must be conceptualized at the same time as the game components are defined. This is not a sequential process, but one in which all aspects of the intended system must be considered at the same time. This chapter will show how to approach these design challenges.