The slides from my section of a group presentation, entitled “iPhone Commerce”. Very short, but the message is that people will shop differently on mobile devices, and we need to consider this in our user interface design.

1. iPhone Commerce
Cate Huston
Tuesday, October 13, 2009

2. iPhone-Commerce
Changes
✦ How do mobile devices
change the way we
interact?
✦ How does this change the
way we need to write our
applications?
✦ How is e-commerce on the
iPhone different from e-
commerce on the iMac?
Picture from www.apple.com/iphone
Tuesday, October 13, 2009

3. iPhone-Commerce
Interacting Differently
✦ How is interacting with a mobile device
different from interacting with a PC?
✦ Shorter sessions
✦ Use on the move
✦ Reduced bandwidth
✦ Small screens
Tuesday, October 13, 2009

4. iPhone-Commerce
When and Where?
✦ If Amazon had an application for the iPhone,
when might you use it?
✦ Compare prices at the bookstore
✦ Buy a book recommended by a friend
whilst out for dinner
✦ Buying a movie whilst watching trailers at
the cinema
Tuesday, October 13, 2009

5. iPhone-Commerce
Implications
✦ What does this imply?
✦ Closer to impulse buying rather than more
targeted shopping
✦ Need to make interaction fast
✦ Personal device, but can we keep people
logged in?
✦ Make the most of screen real-estate
Tuesday, October 13, 2009

6. iPhone-Commerce
Facebook for iPhone
Tuesday, October 13, 2009

7. iPhone-Commerce
Ebay
Tuesday, October 13, 2009

8. iPhone-Commerce
Ebay for iPhone
Tuesday, October 13, 2009

9. iPhone-Commerce
Working on a Small Screen
✦ How can we make the
most of screen real estate?
✦ One way - optimize image
display depending on
which way up the device is
✦ The iPhone provides a way
for us to do this, using an
accelerometer chip
Picture from www.product-reviews.net/tag/handsets/
Tuesday, October 13, 2009

10. Demos
✦ Rotation
✦ Navigation
✦ Table Search
✦ Scrolling
Tuesday, October 13, 2009

11. iPhone-Commerce
Final Thoughts
"Because the way users interact with iPhone and iPod touch
devices is fundamentally different from the way users interact
with Mac OS X, the way you design your applications must
also be different. In an iPhone application, there is no concept
of separate document windows for displaying content. Instead,
all of the application’s data is displayed in a single window."
"Beyond considering the basic structure of your application, you
need to think about how users will actually use it. iPhone
applications should be clean, and focused on what the user
needs in the moment. Remember that users who are on-the-
go want to get at information quickly and not spend a lot of
time looking digging through several layers of screens. Providing
a simple layout that highlights the key information the user
needs is important."
http://developer.apple.com/iphone/gettingstarted/docs/iphoneosoverview.action
Tuesday, October 13, 2009

12. References
✦ iPhone navigation work: http://www.joehewitt.com/iui/
✦ iPhone SDK: http://lipidity.com/apple/iphone-webkit-
css-3
✦ M-commerce: Technical Issues, Pradip Mondal
✦ www.apple.com/iphone
✦ www.product-reviews.net/tag/handsets/
✦ http://developer.apple.com/iphone/gettingstarted/docs/
iphoneosoverview.action
Tuesday, October 13, 2009