Presentation on theme: "Design Considerations for Information Appliances Information Appliances and Beyond By Eric Bergman Ketan Babaria Human Computer Interaction Lab University."— Presentation transcript:
Design Considerations for Information Appliances Information Appliances and Beyond By Eric Bergman Ketan Babaria Human Computer Interaction Lab University of Maryland
Where we will go today ?? Information Appliances : The definition Design Considerations Challenges ahead
An information appliance is a computer enhanced consumer device dedicated to a restricted cluster of task. Or simply.. It’s an electronic device that performs only a few tasks but does them efficiently and with little effort from the user.
So… PDAs are information appliances while Computers are not Other examples –Microwave –TV Set-Top Box –Screen phones
Characteristics of information appliances Limited purpose and functionality Not necessarily extensible or upgradeable Replacement expectation Perceived as less expensive than PCs Perceived as less complicated to run and maintain versus PCs Very easy to learn and use No expectation of expert user
Why new interface.. Audience reach –Very wide base of consumers –Minimal computer experience High level of specialization
Design Considerations for information appliances
Define your domain Entertainment –Interaction with content is the most important factor. User experience is paramount. –Task completion time is not a critical factor Information access and Communication –Ease of learning is important –Efficiency is critical Assistant devices –Same as information access and communication
Design dedicated user interfaces Integrate user interface with I/O, applications and other system characteristics Predictability more important than consistency or efficiency !!
Allocate functions properly Distribute functions between hardware and software –Frequency of use Assign very visible and easily accessible location in hardware/software –Importance of use Ensure simplicity
Simplify Follow 80/20 rule Optimize user interface around those 20% of functions Limit the choices available at the same time provide reasonable defaults
Design for responsiveness All operations should be immediately interruptible (no dialogue boxes) Provide continuous feedback
Design Consideration sum up Define your domain Design dedicated user interfaces Allocate functions properly Simplify Design for responsiveness
Challenges Infinite types of user interfaces ? Is the product too general/too specific ?