| input | Object | true | https://uor.foundation/trace/ComputationTrace | https://uor.foundation/schema/Datum | The input datum of this computation. |
| output | Object | true | https://uor.foundation/trace/ComputationTrace | https://uor.foundation/schema/Datum | The output datum of this computation. |
| step | Object | false | https://uor.foundation/trace/ComputationTrace | https://uor.foundation/trace/ComputationStep | A computation step in this trace. |
| monodromy | Object | true | https://uor.foundation/trace/ComputationTrace | https://uor.foundation/observable/DihedralElement | The monodromy accumulated by this computation: the net dihedral group element produced by the full operation sequence. |
| from | Object | true | https://uor.foundation/trace/ComputationStep | https://uor.foundation/schema/Datum | The input datum of this computation step. |
| to | Object | true | https://uor.foundation/trace/ComputationStep | https://uor.foundation/schema/Datum | The output datum of this computation step. |
| operation | Object | true | https://uor.foundation/trace/ComputationStep | https://uor.foundation/op/Operation | The operation applied in this computation step. |
| index | Datatype | true | https://uor.foundation/trace/ComputationStep | http://www.w3.org/2001/XMLSchema#nonNegativeInteger | The zero-based sequential index of this step within its trace. |
| stepCount | Datatype | true | https://uor.foundation/trace/TraceMetrics | http://www.w3.org/2001/XMLSchema#nonNegativeInteger | Total number of computation steps in this trace. |
| totalRingDistance | Datatype | true | https://uor.foundation/trace/TraceMetrics | http://www.w3.org/2001/XMLSchema#nonNegativeInteger | Total ring-metric distance accumulated across all steps. |
| totalHammingDistance | Datatype | true | https://uor.foundation/trace/TraceMetrics | http://www.w3.org/2001/XMLSchema#nonNegativeInteger | Total Hamming-metric distance accumulated across all steps. |