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Make & Test Build a prototype of your solutions. Put your prototype in front of users for feedback. This project's phase, was one of the most challenging of the entire project, since "In Service Design, prototyping is used to explore, evaluate, and communicate how people might behave in or experience future service situation" (Stickdorn et al., 2017). While in Spatial Design, the term prototyping indicates the physical model of a space. In the past, the physical model helped the designers to understand proportion, the volume within the space. The prototypes approach used during this project were two: “rapid prototyping” and “role-play.” In the first case, a “rapid prototype” is used to prototype and test both the Spatial concepts and share the results directly with the users. In the second case, the “role-play” was used to involve the final users to experience the different Spatial configurations, to receive feedback and readjust the solutions quickly.