Runtime

DT4H runtime makes the Twin observable across state, confidence, and calibration.

Runtime intelligence tracks model health, signal freshness, cohort density, reference drift, outcome feedback, and recalibration activity.

Runtime diagram #

01Signal Update

New runtime evidence enters the system.

02Twin Check

Confidence, maturity, and freshness are evaluated.

03Calibration

Evidence updates state confidence and trajectory.

04StateK

Current state and readiness are computed.

05SETPOINT

Execution outcomes return for recalibration.

Runtime observability surfaces #

DT4H runtime is the operational visibility layer for the model. It explains whether the Twin is initialized, calibrated, current, and ready to inform StateK and SETPOINT.

01

Runtime Health

Whether the modeling layer is active and responsive.

02

Signal Freshness

How recently new evidence entered the system.

03

Twin Confidence

How mature and reliable the individualized model is.

04

Calibration State

Whether the feedback loop is updating the model.

05

Reference Drift

Whether reference assumptions remain stable.

06

Outcome Feedback

How execution results flow back into recalibration.

Runtime flow #

Signal updateNew evidence enters from user, device, care, or outcome systems.
Model checkRuntime evaluates Twin maturity, confidence, and calibration status.
State computationStateK converts calibrated Twin state into current runtime state.
Execution feedbackSETPOINT outcomes return as evidence for recalibration.

Failure and fallback modes #

Missing signalsDegrade gracefully

Runtime should identify sparse data rather than overstate confidence.

Low confidenceHold action

State should remain provisional when evidence is immature.

Drift detectedRecalibrate

Reference assumptions should be reviewed when observed behavior diverges.

Outcome mismatchAdapt protocol

SETPOINT feedback should trigger learning rather than repeat stale guidance.

Implementation notes #

Runtime status should degrade gracefully

If signals are missing, show low confidence rather than inventing certainty.

Signal freshness must be visible

Runtime output should show whether state is based on fresh or stale evidence.

Outcome feedback must close the loop

SETPOINT execution should feed recalibration rather than remain isolated.

LayerRuntime Layer
StatusActive Draft
SystemDT4H / StateK / SETPOINT
BoundaryInfrastructure, not diagnosis
System lineageDT4HTwinStateKSETPOINTOutcomesRecalibration
Infrastructure boundaryDT4H models cohorts, Twins, calibration, and runtime state. It does not diagnose, prescribe, or replace licensed clinical judgment.
Document statusInfrastructure draft
Last updatedMay 2026
Applies toDT4H.ai / AvatarK.ai ecosystem