Structural Self-Interaction Matrix

A Structural Self-Interaction Matrix (SSIM) is a square matrix whose elements represent the direction of contextual relationships among the respective pairs of factors. One way is to use symbolic interactions to represent these relations in the table (Pramod, V.R. and Banwet, D.K. (2010), (Rajesh K.S et al, 2007).
V-The enabler i ameliorate/improve to achieve enabler j
A-The enabler j ameliorate/improve to achieve enabler i
X- The enablers i and j ameliorate/improve to achieve each other
O- The enablers i and j are unrelated