Table 3 Classification criteria of coupling coordination [67, 68]
D-value interval | Coupling coordination state | D-value interval | Coupling coordination state |
|---|---|---|---|
0 < D ≤ 0.1 | Extreme disorder | 0.5 < D ≤ 0.6 | Barely coupled coordination |
0.1 < D ≤ 0.2 | Severe disorder | 0.6 < D ≤ 0.7 | Primary coupling coordination |
0.2 < D ≤ 0.3 | Moderate disorder | 0.7 < D ≤ 0.8 | Intermediate coupling coordination |
0.3 < D ≤ 0.4 | Mild disorder | 0.8 < D ≤ 0.9 | Good coupling coordination |
0.4 < D ≤ 0.5 | Impending disorder | 0.9 < D ≤ 1.0 | Quality coupling coordination |