This report D2.4: “High fidelity mock-up on Invision” is part of Work Package (WP) 2: “Platform set up” of the project “Quick Challenge-driven, Human Centered Co-creationMechanism for Industry-Academia Collaborations” (INDUSAC). The goal of this deliverable is to graphically represent the users’ journey for Students, Researchers, and Companies as defined in WP1 (Human-centered development of the INDUSAC co-creation methodology) and described in D1.3 (User Journey Maps and user guidance), including the nine Predefined Collaborative Approaches (PCAs) templates and the corresponding Challenge templates for companies to post as defined in D1.2(Predefined Collaborative Approaches). This report also includes a visual representation of the platform’s administration functionalities that will allow the INDUSAC team to control, monitor, and manage all flows related to users (Registration, Profiles, Communication activities), content (Challenges, Letters of Motivation, Solutions and Evaluations scorecards) and efficiently deploy the defined INDUSAC methodology so that all processes are well aligned with the functionalities that the Platform has to provide. The Platform High Fidelity Wireframe is built in Figma (access via the Figma Indusac Project link), where it includes (1) the new sections and templates (PCAs) as defined in the phases (Planning Phase, Onboarding Phase, Search Phase, Project Phase, and Offboarding Phase) and described in the deliverables D1.2 and D1.3, and (2) the Platform Administration functionalities.