What is a written proposal and mock ups?

A written proposal is a formal document that outlines a plan or suggestion for a project, including objectives, methodologies, timelines, and budget estimates. It serves to persuade stakeholders or clients to approve or fund the project. Mock-ups are visual representations or prototypes that illustrate how the final product will look and function, allowing for design validation and feedback before the actual development begins. Together, they provide a comprehensive overview of the project and its expected outcomes.