CanonicalExperimentAllocation
The allocation fields owned by one canonical Experiment version.
Derived from the schema type rather than redeclared, so schema evolution is visible here at compile time without making the adapter require unrelated persistence fields.
Properties
Section titled “Properties”assignment_unit?
Section titled “assignment_unit?”
optionalassignment_unit?:"user"|"account"|"billing_unit"|"organization"
Unit represented by the stable subject identifier; defaults to user.
sequence?
Section titled “sequence?”
optionalsequence?:number
Canonical experiment version — the Experiment.sequence this allocation
was taken from (plan 224, war-games spec §9.1). When present, the native
provider derives an ExperimentAssignmentFactDeclaration so
assignments emit the experiment_assigned assignment fact with the real
(handle, version) SRM join key. When absent, assignment still works but
no fact is emitted for this experiment — a fact with a fabricated
version is worse than a missing one.