Happy to do as asked, though I am a different Dave Thomas. Per my understanding, it's anything you might say about your system, especially as it relates to you

Happy to do as asked, though I am a different Dave Thomas. Per my understanding, it's anything you might say about your system, especially as it relates to your domain. "There is a button here", "this is what we store about users", "broken widgets are red", "this is how we calculate interest", ...