Zulip combines the immediacy of real-time chat with an email threading model.
With Zulip, you can catch up on important conversations while ignoring irrelevant ones.

stakeholders data modeling agile

Shut up and write some code.

Scrum is now the default agile software development methodology. This management framework, which is "simple to understand but difficult to master", is used by 66% of all agile companies. After two extensive workshops, more than five years, and a couple hundreds of sprints working in Scrum, I have some points of criticism about it. I think it's not naturally conducive to good software, it requires too much planing effort on the part of the developers, and it inhibits real change and improvement. In the following, I will try to put these into more detail by organizing them around more concrete topics.