Cocitation Matrix N ■Req1 and Req.2are coupled check off- diagonal elements ■ Forget the diagonal Requirement 1 2 1 Fast way to find which Requirement 2 1 2 ones are coupled System Engineering by J.J.Gao CLGO 7+ - System Engineering by J. J. Gao 7 Cocitation Matrix  Req1 and Req2 are coupled : check off￾diagonal elements  Forget the diagonal  Fast way to find which ones are coupled