> ## Documentation Index
> Fetch the complete documentation index at: https://doc.blueapi.ir/llms.txt
> Use this file to discover all available pages before exploring further.

# EMEP Technical Requirements: Functional and Non-Functional

> Numbered FR and NFR requirements for EMEP across correctness, performance, reliability, security, reproducibility, observability, offline operation, and portability.

EMEP technical requirements define measurable behaviors for all 16 internal abstractions. Requirements are grouped into eight categories. Each row includes a verification method. This page also provides a mindmap of requirement categories.

## Requirement Categories Mindmap

```mermaid theme={null}
mindmap
  root((EMEP Requirements))
    Correctness
      Compatibility analysis accuracy
      Merge numerical fidelity
      Evaluation determinism
    Performance
      GPU utilization targets
      Merge throughput
      Benchmark latency
    Reliability
      Checkpoint recovery
      Graceful degradation
      Retry limits
    Security
      Artifact signing
      Supply chain validation
      Offline key custody
    Reproducibility
      Experiment tracking
      Seed control
      Deterministic pipelines
    Observability
      Metric cardinality
      Log retention
      Alert coverage
    Offline Operation
      Air-gap deployment
      Local artifact store
      No external API dependency
    Portability
      Multi-GPU vendor support
      Containerized workers
      Configurable backends
```

## Correctness

| ID     | Requirement                                                                                                 | Component                  | Verification                          |
| ------ | ----------------------------------------------------------------------------------------------------------- | -------------------------- | ------------------------------------- |
| FR-001 | ModelCompatibilityAnalyzer shall emit COMPATIBLE, CONDITIONALLY\_COMPATIBLE, or INCOMPATIBLE for every pair | ModelCompatibilityAnalyzer | Unit test with 100% state coverage    |
| FR-002 | TensorEngine shall validate all tensor shapes before merge dispatch                                         | TensorEngine               | Property-based test on random shapes  |
| FR-003 | MergeEngine shall produce bitwise-identical output for identical inputs and seeds                           | MergeEngine                | Deterministic regression test         |
| FR-004 | EvaluationEngine shall assign PASS, FAIL, REGRESSION, INVALID, or INCOMPLETE to every candidate             | EvaluationEngine           | Integration test with mock benchmarks |

## Performance

| ID      | Requirement                                                                             | Component       | Verification              |
| ------- | --------------------------------------------------------------------------------------- | --------------- | ------------------------- |
| NFR-001 | TensorEngine shall sustain 80% GPU compute utilization during merge operations          | TensorEngine    | GPU profiling benchmark   |
| NFR-002 | BenchmarkEngine shall complete Optimization Set evaluation within 4 hours per candidate | BenchmarkEngine | CI performance gate       |
| NFR-003 | MergeEngine shall process a 7B parameter merge in under 10 minutes on 1x A100           | MergeEngine     | Load test with timed runs |
| NFR-004 | API server p99 latency shall be under 200ms for registry queries                        | API server      | Load test with k6         |

## Reliability

| ID      | Requirement                                                                      | Component         | Verification                    |
| ------- | -------------------------------------------------------------------------------- | ----------------- | ------------------------------- |
| FR-005  | ExperimentTracker shall recover state from checkpoint after worker failure       | ExperimentTracker | Chaos test with process kill    |
| FR-006  | GPU worker shall release allocation within 60 seconds of job completion or crash | GPU Orchestration | Monitoring alert + manual audit |
| FR-007  | MergeEngine shall fall back to CPU execution if GPU OOM occurs                   | MergeEngine       | Failure injection test          |
| NFR-005 | System availability shall exceed 99.5% during evaluation windows                 | Operations        | Uptime monitoring               |

## Security

| ID      | Requirement                                                                                      | Component             | Verification                         |
| ------- | ------------------------------------------------------------------------------------------------ | --------------------- | ------------------------------------ |
| FR-008  | ArtifactStore shall reject unsigned model artifacts in enterprise mode                           | ArtifactStore         | Security test with tampered artifact |
| FR-009  | Model supply chain shall validate SHA-256 hashes at import                                       | ModelLoader           | Integration test with hash mismatch  |
| FR-010  | Signing key hierarchy shall enforce root → intermediate → signing separation                     | Security Architecture | Key ceremony audit                   |
| NFR-006 | All secrets shall reside in hardware security modules or encrypted vaults in air-gap deployments | Security Architecture | Penetration test                     |

## Reproducibility

| ID      | Requirement                                                                              | Component         | Verification                |
| ------- | ---------------------------------------------------------------------------------------- | ----------------- | --------------------------- |
| FR-011  | ExperimentTracker shall record full provenance: model IDs, merge params, seeds, hardware | ExperimentTracker | Provenance audit query      |
| FR-012  | EvolutionEngine shall support fixed random seeds for every stochastic operation          | EvolutionEngine   | Seed sweep test             |
| FR-013  | BenchmarkEngine shall use identical dataset splits for repeated evaluations              | BenchmarkEngine   | Split hash verification     |
| NFR-007 | Reproducibility protocol shall enable bit-exact reproduction within 24 hours             | Reproducibility   | End-to-end reproduction run |

## Observability

| ID      | Requirement                                                                            | Component            | Verification           |
| ------- | -------------------------------------------------------------------------------------- | -------------------- | ---------------------- |
| FR-014  | Every component shall emit structured logs with trace\_id and experiment\_id           | All components       | Log schema validation  |
| FR-015  | Metrics pipeline shall expose candidate throughput, fitness distribution, and GPU VRAM | Observability        | Dashboard review       |
| FR-016  | Alerting shall fire within 60 seconds of experiment state transition to FAILED         | Alerting             | Synthetic failure test |
| NFR-008 | Log retention shall be 90 days hot, 1 year warm, 7 years cold                          | Storage Architecture | Retention policy audit |

## Offline Operation

| ID      | Requirement                                                                                 | Component         | Verification               |
| ------- | ------------------------------------------------------------------------------------------- | ----------------- | -------------------------- |
| FR-017  | EMEP shall operate without external network access in air-gap mode                          | DeploymentManager | Air-gap integration test   |
| FR-018  | DatasetRegistry shall serve all splits from local storage in offline mode                   | DatasetRegistry   | Offline benchmark run      |
| FR-019  | ModelRegistry shall not require external model hub access after initial import              | ModelRegistry     | Disconnected registry test |
| NFR-009 | Offline deployment shall complete within 2 hours from signed artifact to inference endpoint | DeploymentManager | Timed offline deploy test  |

## Portability

| ID      | Requirement                                                               | Component            | Verification                |
| ------- | ------------------------------------------------------------------------- | -------------------- | --------------------------- |
| FR-020  | TensorEngine shall support CUDA and ROCm backends via configuration       | TensorEngine         | Backend switch test         |
| FR-021  | InferenceBackend shall load models in HuggingFace, GGUF, and ONNX formats | InferenceBackend     | Format compatibility matrix |
| FR-022  | All workers shall run in OCI-compliant containers                         | Runtime Architecture | Container scan and run      |
| NFR-010 | Configuration layer shall require zero code changes to switch GPU vendor  | Configuration        | Config-only backend swap    |

## Traceability Footer

| Spec Reference                                                 | Phase   |
| -------------------------------------------------------------- | ------- |
| [Component Architecture](/architecture/component-architecture) | Phase 2 |
| [Runtime Architecture](/architecture/runtime-architecture)     | Phase 3 |
| [Security Architecture](/architecture/security-architecture)   | Phase 2 |
| [Storage Architecture](/architecture/storage-architecture)     | Phase 2 |
