The Open Group is located in Cambridge, Mass. It consists of the Open Software Foundation, the X Project Team, and X/Open.

TOG is not "open" in the sense of open source. Little of its software is free. TOG made Linux run on top of&Mach, making MkLinux. But the organization is not really comfortable in the open source world. If you want your software certified as in compliance with TOG standards, you had better be a formal organization and you will pay big bucks.

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