# HAV Seafood — Enterprise Item Identity Model

## Purpose

This workbook defines the static enterprise identity and classification layer for items used by HAV Seafood. It provides one cross-domain reference framework for finished goods, intermediate products, seafood raw materials, ingredients, processing materials and packaging without replacing the authoritative Production identifiers.

The workbook contains **175 current enterprise items**: 24 finished-goods SKUs, 18 intermediate products, 13 raw materials, 52 Ingredient-master records (49 classified as ingredients and 3 as processing materials), and 68 packaging materials.

## Workbook contents

- **Item_Classes** — Defines current and future enterprise item classes and their default purchasing, production, selling and inventory-control behavior.
- **Enterprise_Item_Registry** — Cross-domain registry of the 175 current item identities, retaining the authoritative source ID, name, UOM, owner and source workbook.
- **Item_Type_ID_Rules** — Documents which authoritative identifier field and ID pattern applies to each item class.
- **Product_Hierarchy_Map** — Connects the 9 product families and 12 product variants to the 24 sellable SKUs without treating families or variants as inventory items.
- **UOM_Map** — Reconciles the units currently used by registered items and records provisional canonical UOM treatment.
- **Production_Item_Map** — Reconciles all 196 Production product/item identity records (families, variants and enterprise items) with the enterprise model.
- **Future_Item_Classes** — Reserves conceptual space for spare parts, general consumables, office supplies, IT consumables and purchased services without generating those masters yet.
- **Architecture_Notes** — Records scope, ownership, assumptions and boundaries.
- **Data_Dictionary** — Defines workbook fields, datatypes and key roles.

## Relationship to Production Architecture

Production remains authoritative for the current SKU, raw-material, ingredient, packaging and intermediate-product masters. Existing `SKU_ID`, `Raw_Material_ID`, `Ingredient_ID`, `Packaging_ID` and `Intermediate_ID` values are referenced directly rather than replaced by a new universal item ID.

Product families and variants remain Production-owned hierarchy objects. Recipes, BOM quantities, specifications, formulation details, storage rules and other technical attributes remain in their existing Production workbooks.

The authoritative Packaging master contains both `PKG-*` and `LBL-*` values in `Packaging_ID`. Both are preserved, and the Enterprise Identifier Standards workbook has been synchronized to recognize both conventions.

## Boundaries

This workbook contains no inventory quantities, purchase orders, supplier prices, sales orders, production batches, material consumption, costing history or other transactions. Future item classes are defined only as architecture placeholders until their owning domain architectures are built.
