the carry principle
the device in your pocket
Barbara Ballard
http://www.littlespringsdesign.com

mobile
users

available
mobile
contextual
mobile identifiable
users
distractible

available
mobile
contextual
same as
desktop?
mobile identifiable
users
distractible

the carry principle
if only one device is in your pocket ...
• communications • battery powered
(text, voice)
• wireless
• small screen
• device
• multifunctional proliferation
... you browse on this device

so design for ...
browser
compatible • fast content access
• resumable access
• reliable data access
• ease of use
• sometimes full access

so design for ...
• fast content access
• resumable access
browser
• reliable data access
incompatible
• ease of use
• sometimes full access

so design for ...
• fast content access
• resumable access
• reliable data access
• ease of use
local app • sometimes full access
enhanced

so design for ...
browser
compatible • fast content access
• resumable access
browser
• reliable data access
incompatible
• ease of use
local app • sometimes full access
enhanced