- Not understanding the nature of the Internet. Too often, design teams think of the Internet as a pushing media such as television or radio. Users’ behavior on the Internet is different than when they are reading books or newspapers, listening to the radio or watching television. For example, when browsing, users have goals and look for information. If they don’t find what they are looking for, they will leave the page after 8 to 12 seconds. Users scan web pages. They don’t read. If something looks like an ad, they will rapidly look someplace else.
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1. Know what is important. 1. Bring users to your site, 2. Ensure usefulness and usability, 3. Maximize trust. You will make much more money trying to bring users to your site and ensuring good usability than trying to have beautiful flash and look. Most users care only about finding rapidly what they are looking for and achieving their goals. They don’t care Continue reading
The levels at which impacts of change are major are not understood while the levels at which impacts are minor are easily understood.
I just finished the book « Sketching User Experience » by Bill Buxton. This book in my view is an important book. It will have a profound impact on the designer community. They will say:
“WOW, I should have used this or that sketching technique and I would have saved huge amounts of time and money instead of building those expensive prototypes”.
It broadens the concept of sketching to the user interaction or in other words user experience.
The objective of a sketch is to verify an idea rapidly and cheaply. Bill extends the concept to user experience. He describes a multitude of sketching techniques such as Wizard of Oz, Video, and paper mockup as a way to test user experience rapidly and cheaply.
You have to provide your friend with driving directions to come to your home. All of a sudden, your are struggling. Is it two or three stops before turning right? Providing a direction can be very difficult even if you take that route everyday.
Cognition is distributed. Because our memory is optimized, our knowledge is ingrained within our Continue reading
Usability expresses the ease with which people can employ a particular tool or object in order to achieve a particular goal. Usability can also refer to the methods of measuring usability and the study of the principles behind an object’s perceived efficiency.
In human-computer interaction and computer science, usability usually refers to the efficiency or ease of learning with which the interaction with a computer program or a web site is designed.
Usability can be extended to multiple contexts such as consumer electronics, written instruction or mechanical objects.
Usability metrics are essentially:
Distributed cognition proposes that human knowledge and cognition are not confined to the individual. Instead, they are distributed by placing memories, facts, or knowledge on the objects, individuals, and tools in our environment.
Distributed cognition puts emphasis on the individual and his environment. In essence, when observing a user in real work setting, we take into account how knowledge is distributed among other users, tools, documents, and information systems.
Google is now the most successful Internet Company. Since august 2004, Yahoo lost 5.5% while Goggle gained 351% value. Why is it like this and why will it continue.
Cognitive Engineering also called Cognitive Ergonomics comes from Industrial engineering. It is an Integration of Engineering, and Cognitive Ergonomics. From the Greek words “ergon” (work) and “nomos” (science of), “Ergonomics” means the study of humans at work.
You are glancing everywhere searching for information on your computer screen. Soon, you start to feel frustrated and lose patience. Suddenly someone come to your rescue. Standing just behind your shoulder, this helper rapidly points out where to look on the screen. You may or may not have experienced it but this story is related to the notion of Useful Field of View (UFOV).