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68 lines
2 KiB
Markdown
68 lines
2 KiB
Markdown
# Inventory BC - Detailliertes Domain Model
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**Bounded Context:** Inventory
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**Domain Type:** CORE
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**Verantwortung:** Chargen-basierte Bestandsführung, Rückverfolgbarkeit, MHD-Tracking
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## Aggregates
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### Stock (Aggregate Root)
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```
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Stock
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├── StockId
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├── ArticleId - Reference to Master Data
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├── StorageLocationId
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├── BranchId
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├── StockLevel (Quantity) - Current total
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├── Batches[] (Entity) - Batch-level inventory (CRITICAL!)
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│ ├── BatchId - ProductionBatchId OR SupplierBatchId
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│ ├── BatchType (PRODUCED | PURCHASED)
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│ ├── Quantity
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│ ├── ExpiryDate (MHD)
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│ ├── ReceivedAt
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│ └── Status (AVAILABLE | RESERVED | EXPIRED | SOLD)
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├── MinimumStockLevel
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└── ReorderPoint
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Invariants:
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- StockLevel = SUM(Batches.Quantity where Status = AVAILABLE)
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- Cannot withdraw more than available
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- FEFO enforced: oldest expiry first
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- Negative stock not allowed
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- Expired batches must have Status = EXPIRED
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```
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### StockMovement (Aggregate Root) - Event Sourcing candidate!
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```
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StockMovement
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├── StockMovementId
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├── ArticleId
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├── BatchId - CRITICAL for traceability
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├── MovementType (GOODS_RECEIPT | PRODUCTION_OUTPUT | SALE |
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│ INTER_BRANCH_TRANSFER | WASTE | ADJUSTMENT)
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├── FromLocation, ToLocation
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├── FromBranch, ToBranch
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├── Quantity
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├── MovementDate
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├── PerformedBy (UserId)
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├── Reason (for WASTE/ADJUSTMENT)
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├── ReferenceDocument (GoodsReceiptId, ProductionOrderId, InvoiceId)
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└── TraceabilityChain - Link to upstream/downstream
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Invariants:
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- Quantity must be positive
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- GOODS_RECEIPT: FromLocation = null
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- SALE/WASTE: ToLocation = null
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- INTER_BRANCH_TRANSFER: FromBranch != ToBranch
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- All movements must reference a Batch
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```
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## Domain Events
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```java
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StockLevelBelowMinimum(ArticleId, BranchId, Quantity)
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BatchExpiringSoon(BatchId, ArticleId, ExpiryDate)
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StockMovementRecorded(StockMovementId, BatchId, MovementType)
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```
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