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Design of a Vending App

Design of a Vending App. Develop an Understanding. Design Problem. M any Vending Machine Banks around campus serving a variety of products Currently most of these machines require “Cash on Delivery”

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Design of a Vending App

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  1. Design of a Vending App Develop an Understanding

  2. Design Problem • Many Vending Machine Banks around campus serving a variety of products • Currently most of these machines require “Cash on Delivery” • In the future these machines will be able to communicate with a user via smart phones or tablet computers. • Our goal - build a tablet based user interface to shop at these vending machines.

  3. Starting the UI Design Process

  4. Information we need before we Design • Users • Payment details • Set of products • Functionality • Advantages/Disadvantages • Platform - Hardware

  5. Developing an Understanding • Who are the Users • Where will this application be used Environment • What Tasks will this application need to support • What are the Usability Goals which will make this application successful from a user perspective • What will make this application a business success - Business goals

  6. Who are the Users

  7. Who Are the Users

  8. Who are the Users • Students • Faculty & Staff • Visitors • Special need Individuals

  9. Use Environment

  10. Use Environment

  11. Use Environment • Hall ways and lounges • Often noisy with lots of people talking and laughing • People come, go, stand • Some people might be embarrassed about what they buy • Several individuals might wait in line for vending machine

  12. User Tasks

  13. User Tasks

  14. User Journey Major Steps of the interaction Setup Arrive Shop Buy Request help Pickup Complete

  15. UserTasks (1/2) • After purchasing the App • Setup app – Personal/financial info • When arriving to the Vending area • System Locate application – Like finding a network on the lap top • User sign in - passcode • Ready to shop • Browse available items – Orientation and promotions • View Favorites – system will build up based on repeated purchases • Locate candidate item • Categories • Price • Names + Images • Search for a specific item • Interrogate system to obtain additional item info • View cart status – items, cost • Select item

  16. User Tasks (2/2) • Ready to buy • Review cart status • Edit cart content • Buy • Ready to pickup items • Be directed to the specific vending machine that contain my items • Close transaction • Opportunity for feedback • Auto close

  17. Usability Goals

  18. Usability Goals

  19. Usability Goals • Promote user trust • About personal info • About fiscal info • Minimal data input • Amount of data • Number of steps • Support decision making • Possibly show items I bought in the past • Provide relevant info for decision making – e.g., dietary, allergic • Keep user in control • Ability to add delete • Feedback about item status, cost

  20. Business Goals

  21. Business goals

  22. Business goals • Sell products • Minimize cart abandonment • Increase average cart value • Build long term relationship with customers – Return customers • Obtain payment • Engender trust • Minimal support needs

  23. Other Potential Requirements • Localization • Multiple languages • Different currencies • Accessibility by individuals with special needs • Online help • For first time users • For issues • How to contact us

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