SUS: The Most Used Questionnaire for Measuring Perceived Usability The System Usability Scale (SUS) is a ten-item questionnaire administered to users for measuring the perceived ease of use of software, hardware, cell phones and websites. It’s been around for more than a quarter century, and its wide usage has allowed …

An Introduction To A/B Testing A/B Testing isn’t a new term. In fact, many canny marketers and designers are using it at this very moment to obtain valuable insight regarding visitor behavior and to improve website conversion rate. Unfortunately, A/B Testing still remains in the dark for most online marketers and …