Looks like the same inaccurate and often erroneous transportation wizard that Our Laughing Place dot com uses.
I wouldn't depend on that for definite answers to get from a to b.
OP: I would ask specific questions about how to get from one place to another. WDW transportation can be a complicated thing to figure out and I recommend reading/asking as much as possible on here to understand it.
For your specific questions:
MK to BWI: take the bus. The Boardwalk is behind BWI.
DtD to YC (Yachtsmen's Steakhouse): take the bus to BC/YC.
Note that there are 3 monorail lines: the resort loop (going to all the MK area resorts, MK and TTC), the MK express (TTC and MK only), the EPCOT express (TTC and EPCOT only). All monorail lines meet at the TTC and require transfers to get from one to the others.
For the EPCOT area deluxe resorts, there is a walking path along a canal to get to: EPCOT via the back entrance, YC/BC, BWI, Swan/Dolphin and DHS. A boat serves the same places along the canal, though it is not any faster than walking.
Parks generally serve as hubs for the buses. So if you want to get to a non-MK or non-EPCOT resort from another resort, you generally want to get to a park, then catch a bus from there to the destination resort.
DtD has no buses that go straight to a park, but only to resorts.