Research: Usability Testing

Metrics are the signals that show whether your UX strategy is working. Using metrics is key to tracking changes over time, benchmarking against iterations of your own site or application or those of competitors, and setting targets.

Although most organizations are tracking metrics like conversion rate or engagement time, often they do not tie these metrics back to design decisions. The reason? Their metrics are too high level. A change in your conversion rate could relate to a design change, a promotion, or something that a competitor has done. Time on site could mean anything. Read More

Throughout my career as a user experience designer, I have continually asked myself three questions:

• What should my deliverables be?
• Will my deliverables provide clarity to me and their audience?
• Where do my deliverables and other efforts fit within the spectrum of UX design?

I have found that, if I do not answer these questions prior to creating a deliverable, my churn rate increases and deadlines slip.

When attempting to answer the third question, I use a framework I discovered early in my career: The Five Competencies of User Experience Design.PDF This framework comprises the competencies a UX professional or team requires. The following sections describe these five competencies, outline some questions each competency must answer, and show the groundwork and deliverables for which each competency is responsible. Read More

UX researchers and other project stakeholders often fervently debate the number of participants that are necessary for usability studies. At the core of this debate is often the tension between the usability professional’s desire for the best possible study and the business team's desire to reduce time and expense.

In 2009, Ritch wrote an article for the Journal of Usability Studies titled “How to Specify the Participant Group Size for Usability Studies: A Practitioner’s Guide” to address this issue. He based his article on a wide survey of the literature then available, and his intent was to help usability professionals make clear recommendations for the size of participant groups in particular contexts, as well as to understand the basis for those recommendations and their associated risks. Read More