Unix-95 is (was in 1995… it has been updated since) a system call, packaging, and shell command standard that any Unix implementation must adhere to in order to be branded as ‘Unix.’ (See https://en.wikipedia.org/wiki/Single_UNIX_Specification). Test suites and reviews ensure compatibility with the standard. There is a formal standards body that ensures this compatibility.

UnixWare is a brand of Unix from SCO (https://en.wikipedia.org/wiki/UnixWare). It is a direct descendant of Bell Lab’s Unix System V and, thus, the root of all things Unix. Through various acquisitions and sales, UnixWare, including most of its source code, is a direct descendant of System V.

UnixWare 7 was a Unix-95 branded OS.