Under Development - Launching Feb 2018
Do users like systems with better usability? You might think that's a stupid question, but research shows that the full story is a bit tricky. To give away the answer: yes, users prefer the design with the highest usability metrics 70% of the time. But not 100%.
Cras interdum vel non rutrum. Morbi feugiat nibh. Praesent lacinia maximus mi, et tempor nunc tempor nec. Nunc pretium, velit non bibendum sodales, magna elit feugiat enim, ac vestibulum quam sapien quis dolor. Sed massa odio, ornare quis augue sit amet, scelerisque vestibulum neque.
Measuring Preference
To operationalize the question, we must get into details. My assessment of user preference comes from a simple satisfaction question: On a 1–7 scale, how satisfied were you with using this website (or application, intranet, etc.)? Averaging the scores across users gives us an average satisfaction measure.
Because we measure preferences by simply asking users, the metric is inherently subjective. But it's a metric nonetheless. The question here surrounds the possible relation between this subjective metric and more objective measures of system usability.
Measuring Performance
Referring back to the definition of usability, we find several measurable quality attributes that combine to form the bigger construct we call "usability." One is subjective satisfaction, as just discussed. Other — more objective — criteria include time on task, success rate, and user errors.
To calculate objective performance metrics, we basically ask users to perform representative tasks and record how long it takes them (and whether they can do the task at all).
Consider Both Satisfaction and Performance Metrics
There are two practical takeaways from this data analysis:
Performance and satisfaction scores are strongly correlated, so if you make a design that's easier to use, people will tend to like it more.
Performance and satisfaction are different usability metrics, so you should consider both in the design process and measure both if you conduct quantitative usability studies.
Aenean congue, arcu egestas maximus elementum, eros neque faucibus libero,suscipit rhoncus est erat quis. Nam finibus justo et justo semper mattis sed vitae justo. Cras et nisi velit. Interdum et malesuada fames ac ante primis in faucibus. Quisque tempus augue eu molestie sollicitudin. Quisquerutrum est eget volutpat facilisis. Sed porta varius neque sed porta.Etiam sodales massa aliquet orci pulvinar euismod.
Aenean congue, arcu egestas maximus elementum, eros neque faucibus libero,suscipit rhoncus est erat quis. Nam finibus justo et justo semper mattis sed vitae justo. Cras et nisi velit. Interdum et malesuada fames ac ante primis in faucibus. Quisque tempus augue eu molestie sollicitudin. Quisquerutrum est eget volutpat facilisis. Sed porta varius neque sed porta.Etiam sodales massa aliquet orci pulvinar euismod.
Aliquam sit amet — hendrerit libero, at accumsan velit. Curabitur tortor sapien, auctor at felis vel,
feugiat luctus eros. Nunc viverra nisl vel ante cursus, in rhoncus arcu maximus.
Nullam pulvinar pharetra iaculis. Ut dignissim faucibus neque, eu congue velit sagittis ut. Etiam aliquet risus, quis ullamcorper metus laciniased. In leo lectus, scelerisque ut placerat varius, tristique et arcu. Proin nisileo, congue a mi laoreet, gravida pharetra nunc. Ut sagittis in arcu eu mollis.Phasellus condimentum, dolor sit amet malesuada iaculis, velit sem cursusmassa, volutpat faucibus nulla libero vitae. Integer consequat eros non pulvinar convallis. Fusce et pretium neque, id egestas urna. In cursus ac est ut bibendum.
Nulla id blandit — Eros, eget convallis arcu. Ut eu tortor maximus, tempus nibh eget, pellentesque nisi.
Sed felis mi, pretium id erat et, molestie mollis quam.
Duis ultrices, mauris eu rhoncus hendrerit, felis metus condimentum,suscipit placerat ante ante nec augue. Nulla facilisi. Donec pulvinar nuncmagna, nec facilisis ante suscipit id. Nulla eu erat finibus, pulvinar purus vitae, cursus ex.
consectetur adipiscing elit. Cras lacinia felis at finibus commodo. Nulla in lacinia neque,
vel dapibus dui. Suspendisse libero ex, posuere at tincidunt.
Suspendisse libero ex, posuere at tincidunt nec, vehicula a turpis. Vivamus laoreet
vehicula tellus, vitae maximus urna.
Nulla pellentesque ante non nisi consectetur, nec feugiat accumsan. Suspendisse
libero ex, posuere at tincidunt nec, vehicula a turpis.
Proin nisi leo, congue a mi laoreet, gravida pharetra nunc. Ut sagittis in arcu eu mollis. Phasellus condimentum, dolor sit amet malesuada iaculis, velit sem cursus massa, volutpat faucibus nulla libero vitae.
