Dana Goldblum

Section 2

Bad Design: The EnV Touch’s Unlock Button

EnV Touch Design

Clicking the lock button twice unlocks the whole phone

First time unlocks screen, second time unlocks entire phone

1st

2nd

http://redtape.msnbc.com/2008/05/post.html

Pocket Dialing

1 star24%

2 Stars18%

3 stars11%

4 Stars15%

5 Stars31%

User Reviews

Other than battery life and randomly turning off, the number one con people listed was pocket dialing

Other Phone Locks

Improved Design

Three programmable buttons that must be pressed in a certain pattern in order to access the screen

Analysis of New Design

Pros Cons

Less pocket dials Could still potentially unlock while in a bag or a pocket

Programmable Possible to forget pattern

Safer, people who don’t know pattern can’t unlock your phone

More time to unlock

http://high-tech-tomorrow.blogspot.com/2010/11/iphone-lock-screen-exploit-fixed-with.html (slide 5, iphone picture)

http://freshgear.wordpress.com/2009/05/03/review-blackberry-bold-9000/ (slide 5, blackberry picture)

http://www.ubergizmo.com/2009/11/motorola-droid-review/ (slide 5, droid picture)

http://reviews.cnet.com/cell-phones/lg-env-touch-verizon/4852-6454_7-33665903.html?tag=uoBody( slide 4, info about user reviews)

The rest of the pictures and drawings were supplied by me

References