1. Authenticated User presses the “Upload Model” button in the navbar.
2. Authenticated User fills in the form with model information (Title, file to upload, description, tags, privacy settings).
3. System validates the form data and the uploaded file(s).
4. Model is added to the system and the Authenticated User is redirected to the model’s page.

3.
    a. The submitted data is invalid.
        1. User is informed of the error and asked to re-enter the form data; Use case continues at step 3.