SMS Usability.
@opendream
facebook.com/opendream

Mobile phone's keypad.

E.161

E.161
Count: 1
Word: A

E.161
Count: 2
Word: B

E.161
Count: 3
Word: BA

E.161
Count: 4
Word: BAP

E.161
Count: 5
Word: BAQ

E.161
Count: 6
Word: BAR

E.161
Count: 7
Word: BARA

E.161
Count: 8
Word: BARB

E.161
Count: 9
Word: BARC

E.161
Count: 10
Word: BARC

E.161
Count: 11
Word: BARCA

E.161
Count: 12
Word: BARCAM

E.161
Count: 13
Word: BARCAMP

E.161
Count: 13
Word: BARCAMP

E.161 with T9
Count: 7
Word: BARCAMP

The problem...

miispel.

laziness.

E.161
Count: 1
Word: A

E.161 with laziness.
Count: 2
Word: B

E.161
Count: 3
Word: BA

E.161
Count: 4
Word: BAP

E.161
Count: 5
Word: BAQ

E.161
Count: 6
Word: BAR

E.161
Count: 7
Word: BARA

E.161
Count: 8
Word: BARB

E.161
Count: 9
Word: BARBA

E.161
Count: 10
Word: BARBAM

E.161
Count: 11
Word: BARBAM

E.161
Count: 12
Word: BARBAMP

or this could be happened

order duk sovp forme.

T9 helps sometime.

QWERTY.

http://www.flickr.com/photos/a_ninjamonkey/3863970142/

What about other languages?

Thai.

Thai input is based on E.161

ช-ฌ
ก-ฉ ญ-ฐ
ฒ-ณ บ-ผ
ต-น
ว-ส
ฝ-ภ
ม-ล
ห-ฮ vowels and special characters.

ช-ฌ
ก-ฉ ญ-ฐ
44 base characters.
22 vowels.
ฒ-ณ บ-ผ 4 tone marks.
ต-น
ว-ส
ฝ-ภ
ม-ล
ห-ฮ vowels and special characters.

T9 for Thai doesn’t help all
the time.

And I think this happens to
most of South East Asia
languages as well.

is QWERTY help?

Imagicharacters.
(my own term, please don’t use this for any official reference :-P)

ขฃชซฆฑทมต

ค ฅ ศ ....

ok, this is my last slide.