“…As a result, the topology model of so-ECN could be established and formatted as G = (E, V, W), where V = {v 1 , v 2 , v 3 , ., v N } denotes a node set and v i (i = 1, 2, ., N) denotes the manufacturing or service enterprise; E = {e 1 , e 2 , e 3 , ., e M } denotes an edge set and e i (i = 1, 2, ., M) denotes the actual and potential collaboration relationships among enterprise nodes; W = {w 1 , w 2 , w 3 , ., w M } denotes the collaboration probabilities among enterprise nodes. The adjacency matrix A = (a ij ) n3n is shown in equation (1). It is noted that the established so-ECN is a weighted and undirected network derived from the adjacency matrix a ij = 1 v i and v j have collaborated before max w ij À Á v i and v j have probably collaborated 0 others…”