A medium fidelity prototype is a prototype application with limited functionality but clickable areas which presents the interactions and navigation possibilities. Medium fidelity prototypes requires a correct content description and are usually built upon storyboards or user scenarios. For making the presentation easy, for every action step a basic visual design is created. The medium fidelity prototype is suited for the validation of the interaction concept.
The advantage of medium fidelity prototyping is that the impression of an already functioning application makes it easy for all stakeholders to derive processes from the range of features. This way the solution can be developed in the sense of the prototype.