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Where two frameworks overlap
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Pick two frameworks. This shows which of the first one's requirements are answered somewhere in the second, which were examined and have no counterpart there, and which nobody has compared yet — because those last two are different facts and a spreadsheet cannot tell them apart. Every mapping says how closely the two match.
Choose two frameworks to see which of the first one's requirements are answered by the second, which were examined and have no counterpart, and which nobody has compared yet.