My kids did structured diagrams for the table tennis game and a wireframe for the website.
Page 7 of the AV unit states: PART 1 could be a structure diagram, flowchart or pseudocode of game structure. User interface design could be demonstrated using graphical layout. PART 2 – could be a diagram or sketch, storyboard, or drawing of website structure. User Interface design should show appropriate placement of content and navigation.
Hoping this is right
Tracy