The documentation link you've provided is not from Direct3D 11, it's from Direct3D 9.
That aside, in the code snippets and formulae around discussion of this matrix we see the following:
Cx, Cy - dvClipX, dvClipY from D3DVIEWPORT9
Cw, Ch - dvClipWidth, dvClipHeight from D3DVIEWPORT9
Zmin, Zmax - dvMinZ, dvMaxZ from D3DVIEWPORT9
The mention of "from ...