Usability Testing is not Rocket Science! Baris Sarialioglu I am - - PowerPoint PPT Presentation

Usability Testing is not Rocket Science!

Baris Sarialioglu

I am Baris Sarialioglu...

@mbsarialioglu Managing Partner & Software Tester @ Keytorc ex-SW Developer, ex-Agile Consultant, ex-CMMi Consultant, ex-employee,

Infineon, Boeing, Siemens, Huawei, UniCredit

BOOKS SOCIAL

barissarialioglu

What is UX and What is Usability?

UX or USABILITY, WHICH ONE IS GREATER?

UX vs. USABILITY

TESTING PRIORITIES

Maslow's hierarchy of needs is a theory in psychology proposed by Abraham Maslow in his 1943 paper "A Theory of Human Motivation"

TEST DIMENSIONS...

USABILITY TESTING REPRESENTS THE GREY ZONE!!

Software nature is almost the same; whether it does not work, or it works somehow...

USABILITY EQUATION...

HOW TO MEASURE USABILITY?

EMOTIONS ARE IMPORTANT...

WHEN TO DO USABILITY TESTING?

‘Testing with

• ne user early is

better than testing 50 near the end’ Steve Krug

EARLY or LATE IN THE SDLC?

WHO WILL DO THE USABILITY TESTING?

Users? Testers?

TESTERS or USERS?

10 USABILITY HEURISTICS - Nielsen Norman

User Research Contextual Inquiry Diary Study Focus Group Individual Interview Service Safari Shadowing Survey Persona Experience Map Usability Testing Card Sorting Eye Tracking Remote Testing Tree Testing User Testing Conversion Optimization A/B Testing Multivariate Testing Split Testing Expert Analysis Analytics Review Cognitive Walkthrough Competitor Analysis Content Audit Heuristic Evaluation

USABILITY TESTING TECHNIQUES

WHERE TO DO USABILITY TESTING?

In the Lab In the Wild

USER OBSERVATION IS SOMETIMES HARD...

WHAT KIND OF EQUIPMENT IS NECESSARY IN USABILITY TESTING?

Eyetracking Electroencephalography (EEG)

HOW MANY USERS ARE NEEDED FOR USABILITY TESTING?

USABILITY TESTING DOES NOT SHOW STATISTICS...

If 8 out of 10 participants in a usability test successfully completed a task,

• Can you say that 80% of users in the larger population will be able to complete

it?

• No, you can’t.

EXCUSES ARE NOT VALID...

Users Are Important!

USERS ALWAYS HAVE A POINT...

USERS ARE MOST OF THE TIME SELECTIVE...

80% of the Users use 20% of the features

Pareto Rule

60% easy to use & 40% easy to learn

No such an app for everyone rule

User don’t hate change, they hate you!

User hate change, that doesn’t make their life better. USERS ARE GENERALLY OPEN TO CHANGE...

USERS SHARE...

USERS ARE EMOTIONAL...

USERS NEED CARING...

Easy to Use doesn’t mean good User Experience!

Mobile has Challenges!

USERS ARE MOBILE...

“Carry” Principle

Mobile Phone is always carried

“On” Principle

Mobile Phone is always turned on

“1 meter” Principle

Mobile Phone is always 1m away

“Privacy” Principle

Mobile Phone is not given to anyone

USERS CRITICIZE...

USERS TRIGGER INNOVATIVE SOLUTIONS...

APP Store Review & Star Service | 100% Real Users!!!

USERS DELETE...

• 50% of users are deleting a Mobile App, for a Single BUG!
• 50% of apps are downloaded and used just once!

Heisenbug is a classification of an unusual software bug that disappears or alters its behavior when an attempt to isolate it is made.

USERS FACE WITH STRANGE BUGS...

USERS DO HAVE FAT FINGERS...

There are many Usability Testing Tools!

THERE ARE MANY TOOLS FOR USABILITY TESTING...

DO NOT AUTOMATE USABILITY TESTING...

Usability testing requires human feedback...

FINAL WORDS...

• Do not just focus on functional testing,
• Do usability testing throughout the lifecycle,
• Get to know your users,

○ Their characteristics, their needs, their pain points...

• Prioritize your users,
• Try to do expert evaluation as well as user observation,

○ use ww usability heuristics and follow the trends,

• Try to use tools and new technology but remember;

○ Most of the usability testing happens out in the wild.

• Share your knowledge for the betterment of Testing.

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