# Quality BC (HACCP/QM) - Detailliertes Domain Model

**Bounded Context:** Quality
**Domain Type:** CORE
**Verantwortung:** HACCP-Compliance, Qualitätsmanagement, Audit-Vorbereitung

---

## Aggregates

### 1. TemperatureLog (Aggregate Root)

```
TemperatureLog
├── TemperatureLogId (VO)
├── MeasurementPoint (VO: COLD_ROOM | FREEZER | DISPLAY_COUNTER | PRODUCTION_ROOM)
├── DeviceId (VO) - Reference to Equipment
├── MeasuredAt (VO: Timestamp)
├── Temperature (VO: with unit °C)
├── MeasuredBy (VO: UserId)
├── CriticalLimitMin (VO)
├── CriticalLimitMax (VO)
└── Status (VO: OK | WARNING | CRITICAL)

Invariants:
- Temperature must be within physically possible range (-50°C to +50°C)
- MeasuredAt cannot be in the future
- Status = CRITICAL if temperature outside critical limits
- Status = WARNING if temperature close to limits (within 10%)
- CriticalLimitMin < CriticalLimitMax
```

### 2. CleaningRecord (Aggregate Root)

```
CleaningRecord
├── CleaningRecordId (VO)
├── Area (VO: PRODUCTION_ROOM | COLD_STORAGE | SALES_COUNTER | EQUIPMENT)
├── CleaningPlanId (VO) - Reference to CleaningPlan
├── ScheduledFor (VO: Date)
├── CompletedAt (VO: Timestamp)
├── CompletedBy (VO: UserId)
├── ChecklistItems[] (Entity)
│   ├── Item (VO: "Floor mopped", "Surfaces disinfected")
│   ├── Checked (VO: boolean)
│   └── Remarks (VO: optional)
└── OverallRemarks (VO)

Invariants:
- All checklist items must be checked to complete
- CompletedAt must be >= ScheduledFor
- Cannot complete without CompletedBy
- Cannot modify after completion
```

### 3. GoodsReceiptInspection (Aggregate Root)

```
GoodsReceiptInspection
├── InspectionId (VO)
├── GoodsReceiptId (VO) - Reference to Procurement BC
├── InspectedAt (VO)
├── InspectedBy (VO: UserId)
├── TemperatureCheck (Entity)
│   ├── MeasuredTemperature (VO)
│   ├── ExpectedRange (VO)
│   └── Status (VO: PASSED | FAILED)
├── VisualInspection (Entity)
│   ├── PackagingIntact (VO: boolean)
│   ├── ColorAppearance (VO: NORMAL | ABNORMAL)
│   ├── SmellTest (VO: NORMAL | ABNORMAL)
│   └── Remarks (VO)
├── MHDCheck (Entity)
│   ├── ExpiryDate (VO)
│   ├── DaysUntilExpiry (VO)
│   ├── MinimumAcceptableDays (VO)
│   └── Status (VO: PASSED | FAILED)
├── DocumentCheck (Entity)
│   ├── DeliveryNoteReceived (VO: boolean)
│   ├── VeterinaryCertificateReceived (VO: boolean)
│   ├── QualityCertificates[] (VO)
│   └── AllDocumentsComplete (VO: boolean)
├── SupplierBatchNumber (VO) - For traceability!
└── FinalResult (VO: ACCEPTED | REJECTED | CONDITIONALLY_ACCEPTED)

Invariants:
- All checks must be performed before FinalResult can be set
- If REJECTED, OverallRemarks must be provided
- Temperature must be within acceptable range for ACCEPTED
- MHD must have minimum days for ACCEPTED
- VeterinaryCertificate required for meat products
```

### 4. TrainingRecord (Aggregate Root)

```
TrainingRecord
├── TrainingRecordId (VO)
├── EmployeeId (VO: UserId)
├── TrainingType (VO: HACCP | HYGIENE | FOOD_SAFETY | EQUIPMENT_OPERATION)
├── TrainingDate (VO)
├── ValidUntil (VO) - Auffrischung notwendig
├── Trainer (VO) - Internal or external
├── CertificateNumber (VO)
├── CertificateDocumentUrl (VO)
└── Status (VO: VALID | EXPIRED | REVOKED)

Invariants:
- ValidUntil must be after TrainingDate
- Status = EXPIRED if ValidUntil < TODAY
- Cannot revoke without reason
```

### 5. MaintenanceRecord (Aggregate Root)

```
MaintenanceRecord
├── MaintenanceRecordId (VO)
├── EquipmentId (VO)
├── MaintenanceType (VO: SCHEDULED | REPAIR | INSPECTION)
├── ScheduledFor (VO: Date)
├── PerformedAt (VO: Timestamp)
├── PerformedBy (VO) - Internal staff or external company
├── Findings (VO)
├── Actions (VO)
├── NextMaintenanceDue (VO: Date)
└── Status (VO: COMPLETED | PENDING | FAILED)

Invariants:
- PerformedAt must be >= ScheduledFor
- If FAILED, Findings and Actions must be documented
- NextMaintenanceDue must be calculated based on maintenance interval
```

## Repository Interfaces

```java
public interface TemperatureLogRepository {
    Result<RepositoryError, Void> save(TemperatureLog log);
    Result<RepositoryError, List<TemperatureLog>> findByPeriod(
        LocalDate from, LocalDate to
    );
    Result<RepositoryError, List<TemperatureLog>> findCritical();
}

public interface GoodsReceiptInspectionRepository {
    Result<RepositoryError, Void> save(GoodsReceiptInspection inspection);
    Result<RepositoryError, GoodsReceiptInspection> findByGoodsReceiptId(
        GoodsReceiptId id
    );
}
```

## Domain Events

```java
TemperatureCriticalLimitExceeded(TemperatureLogId, MeasurementPoint, Temperature)
CleaningOverdue(CleaningPlanId, Area, LocalDate scheduledFor)
GoodsReceiptRejected(InspectionId, GoodsReceiptId, String reason)
TrainingExpiringSoon(TrainingRecordId, UserId, LocalDate expiryDate)
MaintenanceOverdue(EquipmentId, LocalDate scheduledFor)
```