Introduction To Usability
Post on 28-Jan-2015
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Web Usability WorkshopWeb Usability Workshop
User Experience
IDEO video
User Experience
User Experience
User Experience
If th ’t fi d it th F ti i t thIf the user can’t find it, the Function is not there…
User Experience
User Experience
User Experience
B k ATMBank ATM
E Mail Postal Mail
Rediffmail Yahoo mail
Metro RailBlue Line bus
User Experience
User Experience
User Experience
User Experience
www.techved.comInfo@techved.com+91 22 4016 3004
Overview
1. Overview of Usability and User Centred Design
2 Benefits of Usability to business of an organisation2. Benefits of Usability to business of an organisation
3. Knowing your users and creating personas
4. Introduction to Navigation, Information Architecture and Task Flow
5. UCD methodology
6. Home Page design
7. Web 2.0
Overview of Usability
How to define Usability
History of UsabilityHistory of Usability
Hiring the right people
Challenges of UCD
Design
What is Design
Design is NOT about decoration. Its about communication and Problem Solving
“Design is not just what it looks like and feels like. Design is how it works.” – Steve Jobs
“Like all forms of design, visual design is about problem solving, not about personal preference or unsupported opinion” – Bob Baxley
Usability
Usability = Use + Ability
• Learnability
• Efficiency
• MemorabilityMemorability
• Errors
S ti f ti• Satisfaction
Reading the Words
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wage
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smog
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Reading the Words
FBIPHDTWAIBM
FBI PHD TWA IBM
Human Memory
In psychology, memory is an organism's ability to store, retain, and subsequently retrieve information.
There are two kinds of memories1. Short Term Memory
• Short-term memory allows one to recall something from several secondsShort term memory allows one to recall something from several seconds to as long as a minute without rehearsal.
• George Miller in his paper ‘The magical number 7 +/- 2’ suggested that the store of Short term memory was 7 +/- 2 items.
• Memory capacity can be increased through a process called chunking.
2. Long Term Memory• Long term memory can store much larger quantities of information for• Long-term memory can store much larger quantities of information for
potentially unlimited duration (sometimes a whole life span). • Short-term memory is supported by transient patterns of neuronal
communication, dependent on regions of the frontal lobe and the parietal lobe. Long-term memories, on the other hand, are maintained by more stable and permanent changes in neural connections widely spread throughout the brain
Visual Memory
Find the amount 1,25
Usability
Usability is the “effectiveness, efficiency and satisfaction with which a specified set of users can achieve a specified set of tasks in a particular environment.” –I t ti l St d d O i tiInternational Standards Organization
A Usable product
• Is easy to learn.
• Is hard to forget.
• Minimizes burden• Minimizes burden.
• Reduces Workload.
• Anticipates and forgives mistakes.
• Does what the user wants and when the user wants it.
• Always provides feedback.
• Satisfying and probably fun to use.
Importance of Usability
If website is difficult to use.....................................
If the homepage fails to clearly state what a ff d h t d th
people leave
company offers and what users can do on the site.........................................................................
If users get lost on a website.................................people leave
they leaveIf a website's information is hard to read or doesn't answer users' key questions..................... they leave
The first law of e-commerce is that if users cannot find the product, they cannot buyit either.
For intranets, usability is a matter of employee productivity. Time users waste being lost on your intranet or pondering difficult instructions is money you waste by paying them to be at work without getting work done.
Current best practices call for spending about 10% of a design project's budget on usability.
Users can
Benefits of Usability
Users can
• Find what they need.
• Learn what else is there.
• Use the tool to its fullest.
• Do it all without help
L f li th i ti i ll t• Leave feeling their time is well spent.
Developers / Designers canDevelopers / Designers can
• Focus on maintenance, improvement and the next project.
• Reduce time / budget lost to
• Helpdesk mails
• Revision to changes.
History of Usability
History of Usability
Hiring the Right people
Usability professionals help design products based on what people
• Are like physically intellectually and cognitively• Are like physically, intellectually and cognitively.
• Can and Can’t do.
• Do well and Don’t do well.
• Expect and Don’t expect.
• Like and Don’t like.
Usability Professional and Graphic Designer
Usability Professional Graphic Designer
• Usability professional gathers data and requirements of the target audience.
• Designer conceptualizes and creates the initial prototype.
• Usability Professional refines the design in accordance to user behavior and conducts U bilit t di th t d iUsability studies on that design.
Usability Professional job titles
Human Factors SpecialistInformation Architect
H F t E i
User Interface DesignerHuman Factors Engineer
Usability Engineer
User Experience Designer
Usability Problem – Process Problem
The problem is• Focusing exclusively on functions, data and technology.• But not focusing on user experience.
Usability Problems
• Management and other teams do not understand the importance of User Research.Research.
• Time to market is low and hence timelines do not allow User Centered Design.
D i k th i t d l f ft f tti th t• Designers work on their gut and personal preference often forgetting that they are not the users of the product.
• Agile Software Development Process vs. User Centered Design MethodologyMethodology.
• Include Usability early in the design / development process
How do you ensure Usability
Include Usability early in the design / development process.
• Include users in the design process through testing.
• Set measurable usability goals early.
• Allow usability and user needs to drive design.
Making Usability Routine
Routine Usability requires an Organization to changeRoutine Usability requires an Organization to change
• You need strong and visionary management
• You need infrastructure
• You need a staff of Usability Professionals.
• You need to make it routine.
If you bring user in to use your product and they have problems, it's not because they're dumb, but we were dumb with the design.
Exercise 1
Thank You
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