This document discusses challenges in designing interfaces for mobile devices. It addresses research questions about major challenges, solutions for user-centered design, and principles for mobile interfaces. Mobile devices can be classified by type, use, and operating system. Interaction design considers consumer perspective, usefulness, and user needs. Challenges include limited input/output facilities due to screen size and hardware constraints, as well as issues with menus, navigation, images, and power management for mobility. The conclusion emphasizes designing for diverse users, usability, affordability, and meeting portability needs through an iterative user-focused process.

1. Amol Kamble
Roll No - 122010011

2. Content
Introduction to ‘HCI’
Problem Statement
Mobile Devices
Interaction Design
Challenge in ‘HCI’ Design for Mobile Devices
Conclusion

3. Introduction to ‘HCI’
“Human-computer interaction (HCI) is the study of
the interaction between people and computers”
Usable
Receptive

4. Problem Statement
Interface designers to make efforts to develop
interactive mobile products that are
• Easy to Learn
• Effective to use
• Enjoyable User Experience

5. Problem Statement
this paper addresses the following research questions:
1. What are the major challenges of designing interactive products for
mobile devices?
2. What are the possible solutions to such problems in developing a good
user-centered design for mobile computing devices?
3. What are the principles of user interface design for mobile devices?
4. What are the new trends in mobile industry in the near future?

6. Mobile Devices
• Mobile devices can be defined in different ways
when they are looked at from different perspectives.
• They can be defined in terms of the services they
offer or based on the level of functionality connected
with the devices.

7. Mobile Devices
Mobile Devices Can be classified as following
1) Type of Mobile Devices
2) Use of Mobile Devices
3) Operating System for Mobile Devices

8. Interaction Design
Interaction design (IxD) is a relatively new field in
the category of computer science that defines the
ways in which a person can interact with a
computer system.

9. Interaction Design
Successful interactive designs should Consider
1) Consumer Perceptive
2) Usefulness
3) Users Need
4) Psychology
5) User Centric Design
6) Usable

10. Challenge in HCI Design for Mobile Devices
A) Hardware Challenges
1) Limited Input Facility
2) Limited Output Facility
3) Designing for Mobility

11. Hardware Challenge
1) Limited Input Facility
• Keyboard
>Space for Key Installation
>Small Keyboard increase error rate
>Effort to learn new typing method
•The Stylus and Touch Screen
>Screen size of the mobile is small
•The Scroll Wheel
>Navigate a mobile device menu in one direction, either
horizontally or vertically.
>Use as push button to do specific function

12. Hardware Challenge
2) Limited Output Facility
• Screen
>Most Commonly used output facility
•Audio
>Good output facility for feedback message for user
>Can be used in conjunction with graphic and text
message

13. Hardware Challenge
3) Design for Mobility
• Power facility for mobile device
>Display , RF unit, Keyboard, Memory.
>power management unit which collects
information in hardware so that the performance
of the system is not degraded

14. Software Challenge
1) Hierarchical Menus
Desktop Site Mobile Site

15. Software Challenge
2)Navigating and Browsing

16. Software Challenge
3) Images and Icon
Desktop Site Mobile Site

17. Conclusion
• Designing interface for user from backgrounds and experiences.
• Designing interface which is Usable and affordable to a
heterogeneous set of users.
• Portability is the main core of the design to meet the
requirement of mobility.

18. There are three key characteristics of interaction design
process
User Focus
Specific Usability Criteria
Iteration
Conclusion

19. Thank you