NASA's Usability Web Site
Follow this link to skip to the main content
+ Contact NASA
Usability and User Centered Design Overview User Centered Design Processes Usability Guidelines Usability Resources and Tools Lessons Learned

+ Home
Overview
what
why
How
when
where

"An iterative design and testing approach also allows one to make steady and rapid progress on a project, to learn through empirical evidence, and to 'shape' the product to fit the end users' abilities, expectations and aptitude."

- Jeffrey Rubin
Handbook of Usability Testing
Usability Overview

How is Usability Determined?

There are several different usability testing methods that can be used to identify problems in a web site. The foundation of usability testing is based on:
  • Find representative users to be your test participants

  • Ask the users to perform typical tasks in the site

  • Observe what the users do. Where do they have problems and why? Where are they successful and why? Probe test participants to vocalize their decision making process.

+ Next: When is Usability Important?


FirstGov - Your First Click to the US Government
+ NASA Portal Project Information
+ Official NASA Public Portal Affinity Kit
+ NASA Privacy Statement, Disclaimer,
and Accessibility Certification
NASA - National Aeronautics and Space Administration
NASA Official: Colin Enger

+ Version Information