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The menu tab is where the user will actually view, select, and compare the items on the menu. The items on the menu will be divided into subcategories. Upon selecting the subcategory, the items will appear in a horizontal scroll pane, with some basic information and its image displayed. Users will be able to use the drop-down filters to restrict the items they can view or use search for an exact item. When a user sees an item they like, they can check the box of the item. All checked items will be put into the compare selections box on the bottom of the screen, which will also be a horizontal scroll pane. Within this box, the user can quickly and easily compare items, pressing the “add to order” button if they like an item. Within the Scenario After Joe, Jane, John, and Julie sit down, they will use the device to look for items they want. Joe can instantly understand the scrolling, filters, search, and compare features and can quickly select what he wants. John, Jane, and Julie will follow the tutorial of arrows and notes and will quickly learn how the system works. Jane and Julie, since they only want fish, will utilize the filter feature to narrow the items they have to look through. |
Order Tab 
Usability Analysis Learnability |
The order menu tab is where the user will be able to review the items they have decided on and also add preparation notes or special requests. The order can be sent by pressing “send my order.” Within the Scenario The four friends will simply look over this page to make sure it is what they ordered, adding preparation notes as they wish. They will press the send button to place their order. |
Payment Tab 
great in terms of learnability. There are clear labels for categories of foods and filters/searches for anything the user desires. The compare box is also clearly labeled and all scrollable areas are marked with the proper affordances. Efficiency It is also very efficient. All the similar items are grouped into buttons that the user can instantly press. The filters and searches allow even more efficiency. The only drawback is if the scrollable areas are too filled with items, resulting in slow scrolling. Safety This is also very safe in that any item selected can be unselected instantly. There are little safety issues with this tab of the interface. |
Order Tab
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The order tab is where the user will be able to review the items they have decided on and also add preparation notes or special requests. The order can be sent by pressing “send my order.” Within the Scenario The four friends will simply look over this page to make sure it is what they ordered, adding preparation notes as they wish. They will press the send button to place their order. Usability Analysis Learnability The order tab is great in terms of learnability. First, there is a list of all items and preferences that the user has selected. It is also very simple in that there is only the list and a send order button. Efficiency It is also very efficient, mainly in its simplicity. There is only a list and a button so not much in terms of efficiency issues. Safety The only issue with safety with this order tab is that orders are final and can only be changed if the waiter/waitress is called over. |
Payment Tab
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The payment tab is where the user will be able to pay for their meal. First, an itemized list of their items along with their prices will be displayed. Next, the split and tip can be calculated based on user input in the fields. Finally, the user can choose which type of payment they would like to use, either credit or cash. Paying by credit would allow the user to simply swipe their card while paying by cash will signal the waiter/waitress to come over. Within the Scenario On this screen, Joe and John want to split their check by couple and can easily do so with the split options. They will also be able to simply calculate the tip based on their input. Joe easily uses his credit card while John chooses to pay by cash. Usability Analysis Learnability The payment tab is great in terms of learnability. First, all options are clearly labeled. Then, there is a list of all items and their prices. Next, the tips and splitting of check can easily be done with the built in feature. Finally, the payment options can easily be selected, providing tutorials if necessary. Efficiency The whole point of this tab is to make the payment process efficient. Since the waiter/waitress interaction is cut down to a minimum, the process is faster. The only drawback is when users pay with cash because then the waiter/waitress will have to come over. Safety The only issue with safety with this order tab is that payments are final and can only be changed if the waiter/waitress is called over |
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The payment tab is where the user will be able to pay for their meal. First, an itemized list of their items along with their prices will be displayed. Next, the split and tip can be calculated based on user input in the fields. Finally, the user can choose which type of payment they would like to use, either credit or cash. Paying by credit would allow the user to simply swipe their card while paying by cash will signal the waiter/waitress to come over. Within the Scenario On this screen, Joe and John want to split their check by couple and can easily do so with the split options. They will also be able to simply calculate the tip based on their input. Joe easily uses his credit card while John chooses to pay by cash. |
Entertainment Tab 
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The entertainment tab is where the user will be able to browse the web or play a social game amongst the people at the table. The main view will be two icons, web and games. The web option will open a browser while the game option will open a tiled view of games available. Within the Scenario a tiled view of games available. Within the Scenario The four friends decide to play a social word game called Scrabble while they wait for their food. Usability Analysis Learnability The entertainment tab is great in terms of learnability. It will simply be two icons, web and games. Learnability is not really an issue here. Efficiency Efficiency is not an issue for this tab. Safety Safety is not an issue for this tabThe four friends decide to play a social word game called Scrabble while they wait for their food. |