Part of the disconnect is formal modeling methods vs informal. There is tremendous value in having a shared understanding of the architecture of system such as

Part of the disconnect is formal modeling methods vs informal. There is tremendous value in having a shared understanding of the architecture of system such as how components interact, the data model and any type of sequence or state modeling if needed. That can sometimes be accomplished just with ephemeral whiteboard diagrams and sometimes more complex situations require deeper analysis. The challenge comes when trying to document the entirety of the system, and keep that up to date. The overhead is too high and complexity is such that it defeats the value of a model used to communicate shared understanding.