we're taking our restaurant client from paper to digital.

We've all been to restaurants. It's pretty amazing that most of them still use paper for orders. The waiters have a pad of paper that they take out of their pocket and write your order on. They walk to the kitchen area and tear off that sheet of paper and hand it to the kitchen staff. They walk back to the kitchen every so often to see if their order is ready--in some restaurants, the kitchen staff shout out when an order is ready. This is an old system ready for updating. But it's high-pressure: no waiter wants to mess with learning a new system when they have ten tables waiting for their food.

The situation is pretty similar when it comes to customers paying the bill. It's paper, it's slow, it needs to change and it's hard to change.

You'll design the UI for the new systems.

Detailed Design

Create two different designs: Using pen and paper, draw 2 sets of ideas of preliminary design sketches for your app's user interface. Consider the particular needs of your target user population. Describe and explain each set of sketches.

Design for a different population: To stretch your thinking, design another set of user interfaces for one of the following: 1) For illiterate users, 2) for blind users, 3) for a tiny screen (smaller than a smartphone screen), 4) for children or 5) for the elderly

Storyboard and notes: Arrange your sketches in the order in which they will be used in your app (storyboarding). Describe each step in detail.

Write a one-page user documentation. Or, design your interface so it needs no user documentation. If you don't need user documentation, please indicate this in your write-up.

Write a task-command analysis. Analyze the command sequence needed to carry out each of several tasks, including the keystroke count of user actions for each of the tasks. Count these categories of actions: button press, hand movement across device or screen, hand movements between screen and other parts of the device.

Analyze your design's strengths and weaknesses: Describe the ways in which your design considers the five measures of usability.