Tablet App for Smart Store

Our client is a startup company launched by former Google employees Paul McDonald and Ashwath Rajan. The idea behind the company is to build 5ft-wide “pantry boxes” that contain non-perishable food and other items similar to those found in convenience stores/bodegas.

Client

Confidential

Location

USA

Industry

Retail

The client required the creation of a vending machine/kiosk touchscreen application. A tablet interfaces with a series of screens that guides users through a transaction process. Transitions on these interface screens are based on messages delivered from a store’s computer.

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Solution

The goal of this project was to create a pilot app to be used on 20-40 stores/tablets. We created a simple Python MVC application (QT GUI as view, interactions with store computer via ZeroMQ, custom keyboard). We delivered a method of receipt to the user using an email screen (created specifically for easier email typing on the touchscreen). The touchscreens were connected to the store. The touchscreen tablet interface is a series of screens guiding the user through the transaction process.
The state (screen) of the interface transitions was based on messages from the store computer. This screen is capable of transition based on users’ touchscreen input.

Gui’s events:

Card swipe.
Store Unlock from app.
Valid Swipe.
Invalid Swipe.
Timeout.
Door Opened.
Door Locked.
Door Closed.
Skip Button Pressed.
Email Button Pressed.
Error message.
App transaction is finished.

In accordance with client requirements and guidelines, we created the design for the app.

Value Delivered

The app collects information in order to send receipts to customers and provide statistics for managers.
The app is highly user-friendly.
All relevant customer input was collected and sent to the stores’ owners for marketing.