The "process" isn't at issue.
To clarify: There was a question raised earlier (#33860) as to whether or not the OS X installer could be used on multiple Macs.
I relayed the information that the "process" POGUE outlined worked with ONE flash drive which I used to install "Yosemite" on
both a MBPRo and a Desktop. The tools to make such a bootable drive - excluding the drive itself, of course - come installed with the computer . . . no need to use third-party software. There was some concern raised that the install disk process of the third-party "DiskMaker X" was
inconsistent in this regard (#33882).
P.S. Update: The POGUE method is the same in the
Yosemite manual (pages 786-787) as it was in the
Mavericks manual. In that section, POGUE makes no comment one way or the other about the universality of such a disk. For me, the ONE install disk works on an early-2011 MBPro and a 2013 iMAC desktop. Alas, my only experience has been limited to the aforementioned two machines of "this ilk."