Is there a Stack Exchange site for questions on how to correctly represent something in a flow chart? My search for a duplicate mostly just turned up feature requests for the ability to add flow charts to posts (though they don't give example questions for where they want them) or requests for a flow chart for how to determine the correct SE for any given question.
I'm trying to figure out how to represent two things happening at the same time in different swim lanes. I suspect that my question will have already been asked at the correct SE site, if it exists.
If it matters, the flow chart isn't for a software program.
I am building a flow chart representing a review process. At one point, the item under review is being looked at by two separate entities. Neither has to wait for the other to take action (which would be either to send the item back or approve it) but the process doesn't move forward until both approve.
What is the correct way to show two things happening at the same time in different swim lanes? How do I indicate that the process doesn't move forward until both approve it? I don't want it to look like the steps after approval can happen until they do.
I created a flow chart approximating the problem rather than screenshot a section of the real one for readability.