Synthetic case · AIDCF-015 reference implementation v1.4 (draft)

One AI capability, traced end to end

A synthetic AI training and inference capability, assessed with the AIDCF method. Follow a failure from its origin to the service outcome it breaks, see which safeguards and controls should stop it, and how the evidence drives the gates and the final decision.

Synthetic data. This case describes no real facility. Every value is illustrative, and the approval record is synthetic: no human approved this decision.

One failure, traced from the water supply to the decision: FS-04 Heatwave and chiller trip
  1. 01 Failure

    Heatwave above design ambient. The cooling chain loses capacity.

    1. External supplyMake-up water supply
    2. Facility engineeringFacility water systemUNKNOWN U-003
    3. Facility engineeringChiller
    4. Facility engineeringCDU 2
    5. Facility engineeringLiquid-cooling secondary loop
    Origin and path

    HZ-02 Heatwave above design ambient (environmental hazard). Directly exposed: CI-001, Facility water system.

    The failure starts in NORMAL operation and propagates through 7 recorded steps. Analysis confidence CONF-2.

  2. 02 Impact

    Accelerators lose cooling, so inference latency breaches its tolerance.

    1. AI technology chainAccelerator compute cluster
    2. AI service functionProvide accelerator compute
    3. Service outcomeInference latency
    Service outcome

    SO-03 Inference latency: p99 request latency at the service edge, tolerance p99 below 300 ms at declared load. Applies in NORMAL and DEGRADED.

    Illustrative: outcome breaches tolerance without the expected safeguards.

  3. 03 Evidence

    The safeguards that should contain it are not shown to work.

    • Leak detection and isolationTHM-019 Leak Detection Not assessedOPS-013 Alarm Rationalisation Partial
    • Accelerator thermal throttlingCMP-019 Error and Degradation Detection Not assessed
    • Exclusivity of the facility water plantUNKNOWN U-003, severity US5
    Findings and unknowns

    F-003 on MCF-OPS-013: Cooling and leak alarms are not rationalised. Critical alarms may not reach the operator with a defined response.

    U-003 on Facility water system: It cannot be determined whether the facility water plant is shared with other tenants. Needed: Facility water service agreement and plant schematic.

  4. 04 Decision

    Not assured

    Alarm Rationalisation is a critical input to CG-07 Critical control-system integrity. A partial result fails the gate, and a failed gate caps the decision however good the rest is.

    Why the gate fails

    CG-07 has 6 critical controls. Under the AIDCF-010 roll-up rule a PARTIAL result never lets a gate pass.

    • MCF-OPS-013 Alarm Rationalisation Partial
    • MCF-POW-021 EPMS Coverage Not assessed
    • MCF-SEC-005 BMS and EPMS Security Partial
    • MCF-SEC-009 Security Zoning Not assessed
    • MCF-SEC-023 Command Allowlisting Not assessed
    • MCF-THM-021 Control Stability Not assessed

    All gate results

Walk through it step by stepDrawn from the AIDCF-015 synthetic dataset. It describes no real facility.

This is one of 12 failure scenarios instantiated in this case. The full graph below is the expert view: every element, dependency and scenario. The scenario library has the twenty cross-domain reference scenarios of AIDCF-004.

1

The decision question

Can the synthetic AI training and inference capability CI-001 be relied on to meet SO-01 to SO-03, as far as they apply in NORMAL and MAINTENANCE states, as at 2026-10-10? SO-02 (RECOVERY only) and the DEGRADED state of SO-03 are outside the assessed scope.

Scope: Synthetic capability CI-001 within snapshot SNAP-001; NORMAL and MAINTENANCE states.

Required service outcomes

OutcomeMeasureToleranceOperating states
SO-01 Training availabilitytraining cluster available for scheduled jobsat most 4 hours unplanned unavailability per 30 daysNORMAL, MAINTENANCE
SO-02 Training checkpoint recoveryrestart from last checkpoint after disruptionrestart within 2 hours, losing at most 30 minutes of training progressRECOVERY
SO-03 Inference latencyp99 request latency at the service edgep99 below 300 ms at declared loadNORMAL, DEGRADED
2

Dependencies and failure paths

30 elements and 17 recorded dependencies. 2 shared fault domains make apparently redundant equipment fail together.

ExternalAssetsSystemsRequired functionsService outcomesFD-01: Common main switchboard upstream of both UPS units. Both redundant units fail together.FD-01FD-02: Single BMS controller commanding both CDUs. Both redundant units fail together.FD-02GPU node pool is part of Accelerator compute clusterBMS controller is part of Supervisory control IACSOT remote-access gateway is part of Supervisory control IACSChiller is part of Facility water systemFabric spine is part of Scale-out fabricMain switchboard is part of Electrical power systemUPS A is part of Electrical power systemUPS B is part of Electrical power systemCheckpoint storage array is part of Checkpoint storage systemCDU 1 is part of Liquid-cooling secondary loopCDU 2 is part of Liquid-cooling secondary loopElectrical power system implements Deliver conditioned powerLiquid-cooling secondary loop implements Remove heatFacility water system implements Remove heatAccelerator compute cluster implements Provide accelerator computeCheckpoint storage system implements Persist checkpointsScale-out fabric implements Provide fabric connectivitySupervisory control IACS implements Supervise facility systemsDeliver conditioned power is required by Training availabilityRemove heat is required by Training availabilityProvide accelerator compute is required by Training availabilityProvide fabric connectivity is required by Training availabilitySupervise facility systems is required by Training availabilityPersist checkpoints is required by Training checkpoint recoveryProvide fabric connectivity is required by Training checkpoint recoveryRemove heat is required by Inference latencyProvide accelerator compute is required by Inference latencyProvide fabric connectivity is required by Inference latencyChiller is relied on by CDU 2 (Fluid)Liquid-cooling secondary loop is relied on by Accelerator compute cluster (Thermal)Main switchboard is relied on by UPS B (Electrical)Scale-out fabric propagates failure to Accelerator compute clusterElectrical power system is relied on by Accelerator compute cluster (Electrical)Main switchboard is relied on by UPS A (Electrical)BMS controller is relied on by CDU 1 (Control)Supervisory control IACS propagates failure to Main switchboardFabric spine is relied on by GPU node pool (Network)Make-up water supply is relied on by Facility water system (Utility)Electrical power system is relied on by Scale-out fabric (Electrical)Facility water system is relied on by Liquid-cooling secondary loop (Fluid)Facility water system propagates failure to CDU 2BMS controller is relied on by CDU 2 (Control)Utility connection is relied on by Electrical power system (Utility)Scale-out fabric is relied on by Checkpoint storage system (Network)Facility water system propagates failure to ChillerCDU vendor is relied on by CDU 1 (Supplier)Accelerator compute cluster propagates failure to Liquid-cooling secondary loopFacility water system propagates failure to CDU 1Chiller is relied on by CDU 1 (Fluid)Electrical power system is relied on by Supervisory control IACS (Electrical)Utility connection propagates failure to Supervisory control IACSLiquid-cooling secondary loop propagates failure to Electrical power systemCheckpoint storage system propagates failure to Scale-out fabricElectrical power system propagates failure to Liquid-cooling secondary loopUtility connectionAST-UTILITY · POWUtility connectionMake-up water supplyRES-WATERMake-up water supplyCDU vendorCDU-VENDORCDU vendorMain switchboardAST-SWB-01 · POWMain switchboardUPS AAST-UPS-A · POWUPS AUPS BAST-UPS-B · POWUPS BChillerAST-CHL · THMChillerCDU 1AST-CDU-1 · THMCDU 1CDU 2AST-CDU-2 · THMCDU 2BMS controllerAST-BMS-CTRL · SECBMS controllerOT remote-access gatewayAST-OT-GW · SECOT remote-access gatewayGPU node poolAST-GPU-NODES · CMPGPU node poolFabric spineAST-FAB-SPINE · NETFabric spineCheckpoint storage arrayAST-STO-ARRAY · STOCheckpoint storage arrayElectrical power systemSYS-POW · POWElectrical power systemFacility water systemSYS-FWS · THMFacility water systemUNKNOWNLiquid-cooling secondary loopSYS-THM · THMLiquid-cooling secondary…Supervisory control IACSSYS-CTL · SECSupervisory control IACSAccelerator compute clusterSYS-CMP · CMPAccelerator compute clus…Scale-out fabricSYS-NET · NETScale-out fabricCheckpoint storage systemSYS-STO · STOCheckpoint storage systemDeliver conditioned powerRF-01Deliver conditioned powerRemove heatRF-02Remove heatSupervise facility systemsRF-06Supervise facility syste…Provide accelerator computeRF-03Provide accelerator comp…Provide fabric connectivityRF-05Provide fabric connectiv…Persist checkpointsRF-04Persist checkpointsTraining availabilitySO-01Training availabilityInference latencySO-03Inference latencyTraining checkpoint recoverySO-02Training checkpoint reco…

Synthetic AI training and inference capability

Synthetic. Describes no real facility.

Synthetic data hall A, its power, cooling, facility water, compute, storage, fabric and supervisory control; the utility is external.

Illustrative: 2.0 MW IT load with accelerator transients; training jobs of up to 14 days.

How to use this

  • Select any box to see what it relies on, what relies on it, and what can go wrong.
  • Start the guided journey to walk one failure step by step, from the plant through the AI systems to the evidence, the gates and the decision.
  • Choose a failure scenario to trace it from its origin to the service outcome it breaks.
  • Boxes marked UNKNOWN carry unresolved evidence gaps that cap the decision.
3

Critical gate results

3 gates fail, 5 are UNKNOWN and 7 were not assessed, so none passes. Only 12 of 360 controls were assessed. Select a gate to see why.

CG-03 · In scope · evidence sufficiency S2

Critical dependency visibility FAIL

Material internal and external dependencies, common-mode exposure and concentration are identified and owned

Why: FAIL: CRITICAL control(s) MCF-DEP-001 PARTIAL; criteria not met: GC-03-1.

Effect on the decision: Gate FAIL caps the decision at LIMITED.

Assessed controls

  • MCF-DEP-001 Asset-to-Function Mapping (critical) PARTIAL

    No evidence gap: all required classes present at S4, floor S4.

    Evidence detail: 2 objects and 1 test

    Required classes: E1 Documentary and declarative; E2 Configuration and technical state.

    Methods: document review, reconciliation, inspection, sampling.

    • EV-002 E1 Documentary and declarative · S4 · quality Q3 · 2026-07-01 to 2026-09-30 · NORMAL
      SHA-256 88d4a879ebf6951d… fixture EV-002
    • EV-015 E2 Configuration and technical state · S4 · quality Q3 · 2026-07-01 to 2026-09-30 · NORMAL
      SHA-256 c915f2708431fecc… fixture EV-015
    • SMP-001 Sample: Sample of required functions for MCF-DEP-001 (Whole population)
  • MCF-POW-001 Utility Capacity (supporting) CONFORMING

    No evidence gap: all required classes present at S5, floor S5.

    Evidence detail: 4 objects

    Required classes: E1 Documentary and declarative; E2 Configuration and technical state; E3 Operational and observational; E7 Derived and analytical.

    Methods: document review, analysis, reconciliation.

    • EV-003 E1 Documentary and declarative · S5 · quality Q3 · 2026-07-01 to 2026-09-30 · NORMAL
      SHA-256 b8f4dae1acbaf7f2… fixture EV-003
    • EV-016 E2 Configuration and technical state · S5 · quality Q3 · 2026-07-01 to 2026-09-30 · NORMAL
      SHA-256 78768a5984a2dda6… fixture EV-016
    • EV-017 E3 Operational and observational · S5 · quality Q3 · 2026-07-01 to 2026-09-30 · NORMAL
      SHA-256 5c9f749bea5d4fba… fixture EV-017
    • EV-018 E7 Derived and analytical · S5 · quality Q3 · 2026-07-01 to 2026-09-30 · NORMAL
      SHA-256 008c40d6c9f50bb7… fixture EV-018

8 of 10 mapped controls were not assessed. 1 criterion not met, 5 criteria not evaluated, 1 criterion unknown.

F-001 (Weakness, MCF-DEP-001): Asset-to-function mapping omits the facility water plant and recovery dependencies. Shared-source dependencies for RF-02 cannot be analysed.

U-003 (US5): Exclusivity of the facility water plant. Systemic: decision capped at INCONCLUSIVE by this UNKNOWN alone; CG-03 and CG-06 cannot pass.

4

The assurance decision

Decision state

NOT_ASSURED

Controlling reason: CG-07 FAIL (failCeiling NOT_ASSURED), Critical control-system integrity. The most restrictive ceiling wins; it is not an average.

12controls assessed of 360
11scored (1 UNKNOWN)
3.06%coverage (scored controls only)
WITHHELDscore band

Why the score band is withheld: coverage 3.0556% below 80%; US4/US5 UNKNOWN open in scope. AIDCF withholds the band below 80% coverage, or while a US4 or US5 UNKNOWN is open, so a score cannot imply more than the evidence supports.

Valid until 2027-04-10 unless a reassessment trigger fires first. Synthetic record; no human approval was given.

Other ceilings that did not control

Each would cap the decision on its own; NOT_ASSURED is more restrictive than all of them.

  • CG-01 UNKNOWN (INCONCLUSIVE)
  • CG-02 NOT_ASSESSED (LIMITED)
  • CG-03 FAIL (LIMITED)
  • CG-04 NOT_ASSESSED (LIMITED)
  • CG-05 UNKNOWN (INCONCLUSIVE)
  • CG-06 UNKNOWN (LIMITED)
  • CG-08 UNKNOWN (LIMITED)
  • CG-09 NOT_ASSESSED (LIMITED)
  • CG-10 UNKNOWN (LIMITED)
  • CG-11 NOT_ASSESSED (LIMITED)
  • CG-12 NOT_ASSESSED (LIMITED)
  • CG-13 NOT_ASSESSED (LIMITED)
  • CG-14 NOT_ASSESSED (LIMITED)
  • CG-15 FAIL (LIMITED)
  • U-001 US3 (CONDITIONALLY_ASSURED)
  • U-003 US5 (INCONCLUSIVE)
  • U-004 US4 (LIMITED)
  • U-005 US4 (LIMITED)

Open UNKNOWN records

  • U-001 US3 E4 test evidence for MCF-RES-017. Control result UNKNOWN; decision capped at CONDITIONALLY_ASSURED by this UNKNOWN alone. Evidence needed: Component test reports (E4).
  • U-002 US2 Current fabric topology export. Limitation recorded; no ceiling. Evidence needed: Fresh topology export.
  • U-003 US5 Exclusivity of the facility water plant. Systemic: decision capped at INCONCLUSIVE by this UNKNOWN alone; CG-03 and CG-06 cannot pass. Evidence needed: Facility water service agreement and plant schematic.
  • U-004 US4 Integrated cross-domain recovery exercise (GC-10-5). Critical: CG-10 UNKNOWN; decision capped at LIMITED by this UNKNOWN alone. Evidence needed: Integrated recovery exercise report.
  • U-005 US4 Achieved security level (SL-A) of the BMS zone. Critical: CG-07 cannot pass; decision capped at LIMITED by this UNKNOWN alone. Evidence needed: Zone SL-A assessment.
5

Check it yourself

Everything on this page is generated from the reference implementation at commit 8b0a941.

Re-run the checks

git clone https://github.com/Sivas1187/AIDCF
cd AIDCF && git checkout 8b0a941
cd implementation/aidcf-015-v1.4
pip install -r requirements.txt
python3 -B tools/run_all.py

Score calculation hash: 5783596f4e5330457c0fb74dd333f2be893a49b2cccf6bcc2787fd617f980060

Terms such as not assessed and the US1 to US5 UNKNOWN severities are defined in AIDCF-010 and the vocabularies in the repository.