End user experience monitoring
End user experience monitoring is also known as digital experience monitoring (DEM). As defined by Gartner, DEM is an “availability and performance monitoring discipline that supports the optimization of the operational experience and behavior of a digital agent, human or machine as it interacts with enterprise applications and services.” It offers insights into how the application performs from the user’s point of view, allowing you to understand the impact on users of the application. DEM provides the outside-in view of the application performance on how a user is experiencing the application when accessed. The outside-in view begins with establishing what looks good from the end user’s point of view. Examples include web page response times, client-side JavaScript errors, visual stability, interactivity, API latencies, and so on.
If you look at the observability stack referred to in Chapter 2, Overview of the Observability...