According to him, the perceived relevance of a traceability matrix is to easily perform an impact analysis to a changed requirement.
他认为，通过跟踪矩阵的关联，能够很容易地分析需求变化所造成的影响。
2
It is shown that the new equivalent covariance matrix and weight matrix keep not only the symmetry but also the relevance of the original covariance matrix.