I think the value of the chart can be maximized if we can integrate both of sub-domains and Bounded Context.
when starting in most cases Bounded Context == projections of Subdomains in solution space.
But with time some patterns like Generic Bounded Context, ...
Yeah, it makes sense to use the diagram to show either or both depending on the story you want to tell. If the BCs and subdomains are different then I can be useful to highlight that.
I think the value of the chart can be maximized if we can integrate both of sub-domains and Bounded Context. when starting in most cases Bounded Context == projections of Subdomains in solution space. But with time some patterns like Generic Bounded Context, ...
what do you think? does it sound right to you?