Despite our best efforts to replicate customers' behavior in our test automation suites, teams often forget about nonfunctional requirements. An important one is visual perception—how users see and feel each application they use. Visual regression testing can fill a significant gap in user experience expectations.

As payment methods have evolved from the traditional cash-based system to mobile systems, contactless cards are becoming more popular for their convenience and flexibility. Here's a primer on how this mobile payment system stores your card information, as well as the near-field communication technology behind it.

Many new project fields look simple from a distance because we only see the outputs and interfaces. But corner cases, bad data, users with special needs, regulations—getting inside a new knowledge domain and teasing out the special cases and unhappy paths is a skill. This is why business analysts are so important.