Teams need a means of identifying potential bugs and security concerns prior to release—with speed and precision, and without the need to roll back or stage. By simultaneously running live user traffic against the current software version and the proposed upgrade, you can detect bugs while reducing risk and downtime.

On any team, there are bound to be some differences. But even though work styles may differ from what you expect, they may not be problematic simply because they are different. Before making assumptions about what a teammate is doing or why, just ask to find out. Their differences may bring a helpful new perspective.

When testing applications, documenting and interpreting test results can be a challenge. Data models enable us to collect and process test data more dynamically and uniformly. To design effective data models for self-documented tests, there are three important things to consider: what to document, collect, and report.