Model/packages/domain
Khalim Conn-Kowlessar 13c2c6514f §7 slice 2: two-main case 1 weighted-R per Table 9b
Adds secondary_fraction (203) + secondary_responsiveness orchestrator
params. When both main systems heat the whole house (Table 9c case 1),
the u-formula consumes a weighted responsiveness:
  R_eff = (1 - (203)) × R_primary + (203) × R_secondary

Synthetic equivalence test pins the contract: any (frac, R_primary,
R_secondary) call lands the same MIT as a single-main call with the
weighted R. No fixture exercises case 1 (all 6 Elmhurst = single combi),
so secondary_fraction defaults to 0 → identity behaviour.

Case 2 (different parts heated separately) deferred — needs (203) >
1-(91) branch + conditional T_2 averaging + per-system Table 4e
adjustment. No fixture data to drive.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 21:30:37 +00:00
..
src/domain §7 slice 2: two-main case 1 weighted-R per Table 9b 2026-05-20 21:30:37 +00:00
pyproject.toml slice 13: to_rows(properties) returns pd.DataFrame 2026-05-16 16:43:28 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

domna-domain

Shared domain types — Property, Properties, BaselinePerformance, Plan, PlanPhase, Scenario, ScenarioPhase, ScenarioSnapshot, Recommendation, OptimisedPackage, EpcPropertyData, etc.

Boundary: types only. No persistence, no IO, no business logic. Other packages and services depend on domna-domain; this package depends on nothing internal.

Domain definitions live in ../../CONTEXT.md. New types added here must match the glossary terms.

Layout

src/domain/
├── __init__.py
├── property.py             # Property, Properties, PropertyIdentity
├── site_notes.py
├── landlord_overrides.py
├── baseline_performance.py # lodged + effective pair (ADR-0004)
├── plan.py                 # Plan, PlanPhase, OptimisedPackage
├── scenario.py             # Scenario, ScenarioPhase, ScenarioSnapshot (ADR-0005)
├── recommendation.py
├── geospatial.py
├── solar.py
├── anomaly_flags.py
└── ml/
    ├── __init__.py
    ├── transform.py        # EpcMlTransform (versioned per §8.3)
    └── schema.py

When datatypes/epc/domain/ folds in, the EPC schema types move under src/domain/epc/.