Understanding Your Apps
摘要
The source code provides one part of the map to understand how your application works and how your customer uses it. Think of the electromagnetic spectrum—the visual range is just a part of it. To best understand the entirety of the electromagnetic spectrum, different telescopes have been set up to study the natural phenomenon. In the same manner, to fully understand what is happening in the application environment, you need to use various tools and services to get the full picture.