Usability versus Usefulness

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 versus Usefulness

What is Usability?

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:

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What is Distributed Cognition?

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.

Having the right information on time.

The primary ingredient for making right decisions is having the right information on time. Information is often gathered through meetings, interviews, focus group or surveys. Unfortunately, these techniques do not always provide all the insight and facts.   Continue reading Having the right information on time.

Why Google’s stock will reach 1 000 USD

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.

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What is Cognitive Engineering

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.

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Making and add effective: why Useful Field of View (UFOV) is so important

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).

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