| 700 / | HD | DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS |
| 90 | DD | SPECIFIC APPLICATION, APPARATUS OR PROCESS {16} |
| 95 | DD | .~ Product assembly or manufacturing {7} |
| 97 | DD | .~.~ Design or planning {5} |
| 98 | | .~.~.~ 3-D product design (e.g., solid modeling) |