Frequently Asked Questions

Card Sorting

Card sorting is a simple technique that can help you organize data in a way that makes the most sense to your customers or website visitors. It is often used for designing information architecture, workflows, menu structure, or website navigation paths.

Please see our infographic explaining Card Sorting in 5 simple steps.

With card sorting you can collect data that can help you improve your products. For example, if you work on your website redesign, you will be able to come to a better decision regarding your homepage and labeling its categories, or restructure your website navigation. In other words, you are more certain to organize information on your site logically for your users.
This method was developed before we used computers for usability testing. Originally, a person conducting Card Sorting exercise would use paper index cards and write terms or items on each of them. Then they would ask participants to sort these “cards” into logical groups. For example, “car” and “bus” could go into a group called “land” while “ship” and “boat” could be placed into a group called “water”.
Our remote (online) Card Sorting tool supports Open, Closed and Hybrid types.

CLOSED CARD SORT type is where you provide your test participants with the categories for sorting cards.


OPEN CARD SORT type is where your test participants create their own categories while they sort the cards.


HYBRID CARD SORT type is a combination of both OPEN and CLOSED card sorting types. You can also see the use of images in the cards in the example below. Hybrid option was a new option first offered by usabiliTEST in response to our software users.


Absolutely! Our card sorting supports cards with text labels, images or a combination of both.


Built-in analytics tools allow you to present data collected in Card Sorting test in the following formats:
  1. Raw numbers
  2. Percentages
  3. Grouped percentages
  4. Distance matrix
  5. Multi-dimensional scaling (MDS) analysis of the distance matrix
  6. Interactive dendrogram, which represents Hierarchical Cluster Analysis

Prioritization Matrix

Yes, you can customize the label of any axis of the Prioritization Matrix tool. If you do not use this option, the following default values will be used:

X: Importance

Y: Frequency

There is no limit on how many participants each test can have. Because the data is analyzed by our system immediately, the results can change with each selection and are always accurate.
Yes, our Prioritization Matrix supports text labels, images or a combination of both.

Please see demo of the Prioritization Matrix for images.



SUS is abbreviation that stands for System Usability Scale. It is a 10-item questionnaire designed to collect data in order to quantify perceived usability of a product or a service.
It was developed by John Brooke at Digital Equipment Corporation in the UK in 1986.
Yes, we offer a free multi-lingual SUS PDF generator. You can generate your project-specific questionnaire and either print it or download in PDF format. You can generate and download PDF document in the following languages:
  • English
  • French
  • German
  • Portuguese
  • Spanish
  • Simplified Chinese
Our online version of the tool has a real-time built-in calculator. However a brief overview of the process is described in SUS Scoring section.
Our online SUS version of the tool is called SUS Plus, because it offers two additional options, that can ge enabled together or separately:
  • Adjective Rating Scale
  • Promoter Rating Scale