Early on in development, I like to draw a diagram of the components of my application and verbally explain the data flows using it. The interaction of components is natural for most people to understand, and when things break, or you need to implement new features, you can refer back to the diagram so they understand a bit more easily.
It's also a professional way to establish a common way to describe the components of the application
It's also a professional way to establish a common way to describe the components of the application