What is Usability?

There are many definitions for Usability. We believe the most accurate definition is "ease of use", whether of a web page or any multi-channel application with an interface that interacts with users.

Formal definitions

• The importance of Usability

Usability guidelines for web pages simply indicate that if customers can’t find the product, they won’t buy it. Jakob Nielsen, Designing Web Usability




All evidence demonstrates that web pages or applications that are easier to use are differentiated from the competition: they sell more, increase customer loyalty, reinforce visits and reinforce brand reputation.

• The price of Usability

All these benefits involve a cost reduction and general optimisation of production costs, as well as an increase in the productivity of e-commerce web sites. Usability allows faster task accomplishment and reduces lost time.

For developers and manufacturers, the advantages of creating usable products far outweigh the costs. The rule of thumb: every dollar invested in ease of use returns $10 to $100. (IBM UCD)

A real case revealed that after IBM redesigned its web site, paying special attention to Usability, web site sales increased by 400%. (InfoWorld, 1999).

Legal Notice