| Number | Frequency | Centrality | Year | Keywords |
| 1 | 191 | 0.21 | 1992 | Product evaluation |
| 2 | 90 | 0.19 | 1999 | Evaluation index system |
| 3 | 240 | 0.12 | 1992 | Product design |
| 4 | 124 | 0.09 | 1992 | Analytic hierarchy process |
| 5 | 53 | 0.07 | 2000 | Fuzzy comprehensive evaluation |
| 6 | 46 | 0.06 | 1999 | Life cycle evaluation |
| 7 | 42 | 0.05 | 1992 | Product innovation |
| 8 | 15 | 0.05 | 1997 | Concurrent engineering |
| 9 | 21 | 0.05 | 2004 | Quality evaluation |
| 10 | 32 | 0.05 | 2005 | Program evaluation |
| 11 | 145 | 0.04 | 1992 | Industrial design |
| 12 | 118 | 0.04 | 1992 | Design evaluation |
| 13 | 22 | 0.04 | 1997 | Green products |
| 14 | 20 | 0.03 | 2000 | Fuzzy evaluation |
| 15 | 16 | 0.03 | 2000 | Product quality |
| 16 | 31 | 0.03 | 2003 | Comprehensive evaluation |
| 17 | 71 | 0.02 | 1992 | Kansei engineering |
| 18 | 68 | 0.02 | 1992 | Product style design |
| 19 | 13 | 0.02 | 1992 | Products |
| 20 | 32 | 0.02 | 1997 | Evaluation methodology |
| 21 | 2 | 0.02 | 1999 | Product systems |
| 22 | 26 | 0.02 | 2002 | Performance evaluation |
| 23 | 25 | 0.02 | 2005 | Evaluation systems |
| 24 | 20 | 0.02 | 2005 | Evaluation model |
| 25 | 4 | 0.02 | 2005 | Fuzzy theory |
| 26 | 9 | 0.02 | 2006 | Backpropagation neural network |
| 27 | 2 | 0.02 | 2008 | Triangular fuzzy number |
| 28 | 5 | 0.02 | 2016 | Purchase Intention |