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Uploaded by
Rawin Windygallery
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Usabilities
How to design application that easy to use and understandable
Technology
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Related topics:
UX Design
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Usabilities
1.
“Usability” Rawin Viruchpintu Creative Technology
Leader Spriiing Telecom Co.,Ltd. July 19, 2012
2.
Outline • How to
make a good program • Define “Usability” • User Mind Checking • Defect types • Usability testing • Warnings
3.
Usability • Usability is
the ease of use and learn ability of a human-made object. http://en.wikipedia.org/wiki/Usability
4.
How to make
a good program Analysis Design prototype Program Usability test
5.
Define “Usability” ? •
เหมาะที่จะใช้ในชีวิตจริง • ง่ายที่จะเรียนรู้ • ง่ายที่จะจา • เข้าใจได้ว่าระบบทาอะไร • ตอบโจทย์ผู้ใช้ • ทางานได้อย่างมีประสิทธิภาพ
6.
User Mind Checking 6
Apps 3 Screensx
19.
Time for checking
20.
Questions • How many
features in the first screen? • What is the feature that most users will use And why?
21.
Application Flow Sign in Sign
up Timeline News Post Profile Explorer Select Filter Upload
22.
Users don’t need
to remember application flow. Is it easy enough to understand?
23.
Home Time line Chat Notification Groups Location Poke Filter Settings Contact Sign out Groups Chat Pictures Stories Movies Members Setting Details … add/edit/delete Friends Chat Picture Sound Movie Emoticons Winks Respriiing Mention …
24.
Astrid Task/To-do List 1
- 5M users 4.5 stars File Expert 1 - 5M users 4.5 stars Angry Birds Space 10 - 50M users 4.5 stars TweetDeck 1 - 5M users 4 stars Facebook 100 - 500M users 3.5 stars Instagram 10 - 50M users 4.5 stars Last update: Google Play (July 18, 2012)
25.
Application Flow Analysis
26.
• Setting • Play •
Movie Play Setting Movie
27.
• Select scene •
Play • Back Play Back Select scene …
28.
Play Play Setting Movie Back Select scene
29.
Application Flow Analysis
30.
Select Content Post Friends
Search Map Select time line
31.
View Content Home Explorer Post
News Refresh Profile
32.
User Content NextOptions #1 Options #2
33.
Navigation Leads Flow
34.
Facts • There is
about (minimum) 8 clicks to post an image by using Instagram. (Normally I use around 13 clicks) • Clear & simple flow make user feel it is easy.
35.
•ตอบโจทย์ผู้ใช้ (*) •ง่ายที่จะเรียนรู้ •ง่ายที่จะจา (และพร้อมที่จะลืม) •
มีประสิทธิภาพที่จะใช้ในชีวิตจริง.. Recap “Usability”
36.
Recap “Usability” •??? (*) •????? •???? •
???????
37.
Defect types • Program
errors • Missing functionality • Ease-of-use problems
38.
Defect types Ease-of-use problems •
ไม่รู้จะใช้ยังไง • ไม่เป็นอย่างที่คิด • หาไม่เจอ • ยุ่งยาก ขั้นตอนเยอะมากเกินไป • น่าราคาญ • บางฟีเจอร์ user ไม่ได้ต้องการ • Expert users หา missing function ได้
39.
Usability test • Log
what happens • Mock ups เพื่อประเมินผล • ตะโกนถาม user (คิดดังๆ) • เลือก real users จริงมาทดสอบ • ตัด hint, help ดูวิธีการแก้ปัญหา • วิเคราะห์ระบบโดยคนอื่น
40.
Usability test: Measurement Requirements
& targets • วัดว่า user แก้ปัญหาได้ในกี่ steps (เฉลี่ย) • เวลาในแต่ละ step เท่าไหร่ ? • แต่ละ step ที่นาน มีอะไรที่ทาสับสนได้บ้าง กดกี่ครั้ง ? • Test แค่ไหนถึงจะพอ? • ความพอใจหลังใช้ • ความถี่และระยะเวลาในการใช้งานจริง • ให้คะแนนความเข้าใจระบบ
41.
Warnings • ความเป็นไปได้ทางเทคนิค • ความเร็วในการตอบสนอง •
ความชอบส่วนตัวของ Stakeholder • User เข้าใจได้ว่าระบบคือ? และทางานอย่างไร?
42.
References Book: User interface
design – A software engineer perspective Google Play
43.
THANK YOU
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