User Experience in Software Development - A Primer

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Technology Experience
Practical User Experience – A Primer
Overview of User Experience in the context of Software Development

Agenda
What is User Experience
Why User Experience
Where is User Experience relevant
When do we apply User Experience
Who is responsible for User Experience
How do we implement User Experience

Agenda

Definition
‘The extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction in a specified context of use’ – ISO 9241-11 standard
Usability is…
A quality of the final product
A process for creating usable software
The specific techniques used to achieve that result
A philosophy of designing with users in mind

Total Experience
Presentation
Functionality
Content
Navigation
Interaction
…using your products, applications and services.

User Experience in Software Applications
Navigation – I can find my way around
Functionality – I can do what I need to
Control – I am in charge
Language – I understand the terminology
Help & support – I can get help when I need it
Feedback – I know what the system is doing
Consistency – I don’t have to learn new tricks
Errors – Mistakes are hard to make, easy to correct
Visual clarity – I can recognize things and the design is clear and appealing.

A practice, by whatever name…
Usability
Usability Engineering (UE)
User Experience Design (UED)
User Centered Design (UCD)
Human Computer Interaction (HCI)
Human Factors (HF)
Interaction Design (ID)

Dimensionsof Usability
*Courtesy-Whitney Quesenbury, Cutter

Agenda
Why do we need User Experience

Why do we need UX
Useful and Usable
Useful
Provides a utility or function
Enables, informs and educates
Solves problems, works reliable
Satisfies expressed needs
Usable
Works for the user
Is learnable, error-free, easy, fast
Meets end goals
Touches experience goals
Satisfies latent (implicit) needs

Why do we need UX
Usable
Useful

Why do we need UX

Why do we need UX
Traditional Software Engineering
Functional
& Technical
Requirements
Architecture
&
Tech. Design
Coding
Functional
Testing

This methodology does not work ! Why?
Functional
& Technical
Requirements
Architecture
&
Tech. Design
Coding
Functional
Testing
User
Testing

This methodology too does not work ! Why?

Why do we need UX

Why do we need UX
Usable Software Engineering
Functional
& Technical
Requirements
User
Knowledge
User-Centered
Design
Architecture &
Technical
Design
Coding
Functional &
System Testing
User Testing
Improvement

This Methodology works wonders! Why?
1

Why do we need UX
User is the King
Our own perspective( role–based)
Technology
Functionality
Business
Customer
But what about…the User of our product?

Why do we need UX
Benefits of Usability
Product Vendor
User
Easy to learn
Intuitive workflow-improved navigation
Reduce time for performing tasks
Reduce errors
Reduce training time and effort
Increase product subscriptions
Increase product usage
Increase market for product -
target new users
Reduce cost for user training
Manage the scope and releases
Product Developer
Increase measurability of performance
Reduce Customer-reported defects
Reduce defects and rework

Why do we need UX
Benefits of Usability
Bottom-line…Increased ROI
Benefit of between 10:1 and 100:1 (that is, a saving of between $10 and $100 for every dollar spent)

Agenda
Where is User Experience Applicable

Where is UX Applicable
Applications of Usability
Industrial Design
Product Design
Interaction Design
Instructional Design
GUI Design
Web Design

Where is UX Applicable
User-Centered Design
Identifying problems and opportunities in the space where a computerized application will be used
Determining how the business should respond to their problems
Determine strategies that can be constructed to build the application
Arriving at end solutions creatively

Agenda
When is User Experience Implemented

When is UX Implemented
Approach - 1
SDLC
Usability
Evaluation
Approach - 2
SDLC
Usability
Evaluation
Design
Approach - 3
SDLC
Analysis
Usability
Design
Evaluation

When is UX Implemented
The earlier, the better
Certainly before freezing UI design
Ideally, even before freezing requirements and scope

Agenda
Who is responsible for User Experience

Who is responsible for UX
User Experience /HCI Expert

Roles and Responsibilities
Management: Provide leadership and commitment
Business Analysts: Understand Users and specify usability
requirements
Developers: Apply usability guidelines in Design and Development
Testers : Evaluate products for usability defects
Sales/Account Managers: Offer Usability as a value-proposition to clients and prospects
Customer: Give a go-ahead for usability implementation
And…

Roles and Responsibilities
User Experience core team
Implement Usability in projects
Disseminate awareness about Usability
Define processes
Provide consulting to the needy

Agenda
How do we implement User Experience

How do we implement UX
Usability Engineering Life Cycle
User-centered
Analysis
User-centered Design
Usability Testing

User-centered Analysis
User Profiling
Task Analysis
Platform Capabilities/Constraints
General Design Principles
Usability Goals
Style Guide

User-centered Design
Work-reengineering
Conceptual Model
Screen Design Standards
Prototyping- Wireframes
Detailed User interface design

Usability Testing
User /Usability Testing
Test Protocol
Moderated Usability Testing
Un-moderated Usability Testing
Remote Usability Testing

Contact Us
Thank You
Mail : pardhas@texavi.com
pardha.mantravadi@gmail.com
Mobile : +91 9819057757
Twitter : @pardhas
LinkedIn : pardhasaradhimantravadi

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User Experience in Software Development - A Primer

by Texavi Innovative Solutions on May 31, 2010

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