| 700 / | HD | DATA PROCESSING: GENERIC CONTROL SYSTEMS OR SPECIFIC APPLICATIONS |
| 1 | DD | GENERIC CONTROL SYSTEM, APPARATUS OR PROCESS {15} |
| 28 | DD | .~ Optimization or adaptive control {13} |
| 29 | DD | .~.~ Having model {2} |
| 31 | | .~.~.~ Having adjustment of model (e.g., update) |