Table 4 List of attributes and their levels of lower-level
From: A nonlinear bi-level programming approach for product portfolio management
No. | Attribute | Code | Attribute levels | Cost |
|---|---|---|---|---|
B1 | Display | B11 | 13.3″ HD | 276 |
B12 | 14.0″ HD | 360 | ||
B13 | 15.6″ HD | 510 | ||
B2 | Hard disk | B21 | 250 GB 5400 rpm hard drive | 294 |
… | … | … | ||
B24 | 2T 7200 rpm hard drive | 488 | ||
B3 | Graphics card | B31 | Intel HD graphics | 718 |
… | … | … | ||
B34 | NVIDIA GTX860 M 4 GB | 2440 | ||
B4 | Main board | B41 | B85 | 920 |
… | … | … | ||
B43 | X99 | 2710 | ||
B5 | Processer | B51 | Intel core i5, 2 cores | 1730 |
… | … | … | ||
B54 | Intel core i7, 6 cores | 3005 | ||
B6 | Battery | B61 | 6-Cell lithium-ion | 475 |
B62 | 9-Cell lithium-ion | 680 | ||
B7 | Memory | B71 | 4G DDR3 | 266 |
B72 | 8G DDR3 | 410 | ||
B8 | Case | B81 | Metal | 191 |
B82 | ABS | 104 |