DIY Stock & Project Catalog

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Version	Status	Released	Sunset	Notes
v1.0.0current	Released	May 31, 2026	—

Domain · asset

Asset

A universal asset entity representing any physical thing that can be tracked, maintained, and linked to compatible products.

Context·Assets are the equipment side of the data model. The same model serves machinery on a shop floor, vehicles in a fleet, units in a building, devices in the field, and instruments in a lab. Assets are linked to Products via compatibility relationships, enabling "what fits this asset?" queries, and to Customers via ownership relationships.

Exposed fields by entity

Exposed fields by entity
Field	Business meaning

name	Human-readable name or model designation of the asset.	INTERNAL	DESCRIPTIVE	CNC Mill XR-200
manufacturer	The manufacturer or make of the asset.	INTERNAL	DESCRIPTIVE	Siemens
serialNumber	Manufacturer-assigned serial number that identifies a specific physical unit.	INTERNAL	IDENTIFIER	SN-987654321
modelNumber	Model or type designation assigned by the manufacturer.	INTERNAL	IDENTIFIER	XR-200
yearProduced	Year the asset was manufactured or produced.	INTERNAL	OTHER	2019
externalIds	Open key/value map of industry- or system-specific identifiers attached to the asset (e.g. registry numbers, regulator IDs, third-party reference numbers).	INTERNAL	IDENTIFIER	{"vin":"WAUZZZ8K1AA123456","epc":"DE-0010-XYZ"}
status	Current operational status of the asset.	INTERNAL	DESCRIPTIVE	ACTIVE
condition	Physical condition assessment of the asset.	INTERNAL	DESCRIPTIVE	GOOD

Related entities
Relationship	Target entity	Cardinality	Description
compatible_with	Product	many	Products (parts, consumables, accessories) that are compatible with this asset.
owned_by	Customer	many	Customers who own or operate this asset.
parent_of	Asset	many	Child assets in the hierarchy (e.g. components of a machine, units in a building, sub-systems in a vehicle).
located_at	Location	one	Physical location of the asset.

Domain · catalog

Brand

A product brand or manufacturer. Groups products by their source company.

Context·Brands are the primary organizational unit for product catalogs. Combined with MPN (Manufacturer Part Number), a Brand uniquely identifies a product across systems.

Exposed fields by entity

Exposed fields by entity
Field	Business meaning	Sensitivity	Shape	Example
name	Official brand or manufacturer name.	INTERNAL	DESCRIPTIVE	Acme
logoUrl	URL to the brand logo image.	PUBLIC	OTHER	https://cdn.example.com/brands/acme/logo.svg

Related entities

Other entities this product references. Use them as breadcrumbs when you map the product against your own data model.

Related entities
Relationship	Target entity	Cardinality	Description
manufactures	Product	many	All products manufactured by this brand.

Domain · catalog

Exposed fields by entity
Field	Business meaning	Sensitivity	Shape	Example
name	Category name at this level of the hierarchy.	INTERNAL	DESCRIPTIVE	Sensors
path	Materialized path showing the full hierarchy from root to this category, separated by " > ".	INTERNAL	OTHER	Electronics > Sensors > Temperature
parentId	ID of the parent category. Null for root-level categories.	INTERNAL	RELATIONAL	019314c2-7e2e-7c91-9a7d-4b6e5e9b1a23

Related entities
Relationship	Target entity	Cardinality	Description
parent_of	Category	many	Child categories nested under this category.
contains	Product	many	Products classified under this category.

Product

A physical or digital product in the catalog with pricing, stock levels, and (where applicable) compatibility metadata.

Context·Core entity for any product-centric business. Products belong to a Brand, are organized in Categories, and have StockLevels across Warehouses. They can be linked to Assets via compatibility relationships and to other products via cross-references (equivalents, replacements, OE/aftermarket pairs in the relevant industries).

Exposed fields by entity

Exposed fields by entity
Field	Business meaning	Sensitivity	Shape	Example
sku	Stock Keeping Unit -- the provider's internal product identifier. Unique within an organization.	INTERNAL	IDENTIFIER	WIDGET-001
ean	European Article Number (EAN-13 or EAN-8) -- a globally unique barcode identifier.	INTERNAL	IDENTIFIER	4006381333931
mpn	Manufacturer Part Number -- the identifier assigned by the brand/manufacturer.	INTERNAL	IDENTIFIER	P 85 020
partNumber	Generic part number field for additional numbering schemes beyond SKU, EAN, and MPN.	INTERNAL	IDENTIFIER	PN-A12-3456
name	Human-readable product name or title.	INTERNAL	DESCRIPTIVE	Industrial Sensor Module, 24V, IP67
description	Free-text product description. May contain technical specifications, application notes, or marketing text.	INTERNAL	DESCRIPTIVE	Industrial-grade temperature sensor module with 24V DC supply, IP67 housing, and 4–20 mA analog output.
priceNet	Net price (excluding tax) in the currency specified by the currency field.	INTERNAL	TRANSACTIONAL	149.00
currency	ISO 4217 currency code for the price.	INTERNAL	TRANSACTIONAL	EUR
taxRate	Tax rate as a decimal fraction (e.g. 0.19 for 19% German VAT).	INTERNAL	TRANSACTIONAL	0.19
weightKg	Product weight in kilograms.	INTERNAL	OTHER	0.85
hasVariants	Whether this product has size/color/specification variants.	INTERNAL	OTHER	false
status	Product lifecycle status: DRAFT (not visible), ACTIVE (available), DISCONTINUED (no longer sold), ARCHIVED (hidden).	INTERNAL	DESCRIPTIVE	ACTIVE
crossReferences	Links to equivalent, superseding, or compatible products from other brands.	INTERNAL	OTHER	[{"type":"EQUIVALENT","relatedProductId":"019314c2-..."}]

Related entities

Other entities this product references. Use them as breadcrumbs when you map the product against your own data model.

Related entities
Relationship	Target entity	Cardinality	Description
manufactured_by	Brand	one	The brand/manufacturer of this product.
categorized_in	Category	many	Product categories (hierarchical). A product can belong to multiple categories.
stocked_at	StockLevel

Domain · service

Service

A sellable or operational service offered by an organization.

Context·Services are service-domain catalog items that can be priced, scheduled, bundled, quoted, or attached to requirements.

Exposed fields by entity

Exposed fields by entity
Field	Business meaning	Sensitivity	Shape	Example
name	Service display name.	PUBLIC	DESCRIPTIVE	—
description	Customer-facing service description.	PUBLIC	DESCRIPTIVE	—
status	Lifecycle state controlling availability.	INTERNAL	DESCRIPTIVE	—
basePrice	Default service price when configured.	PUBLIC	TRANSACTIONAL	—

Domain · foundation

Tag

A tenant-defined label that can be attached to many different entity types.

Context·Tags provide lightweight cross-domain classification without changing the underlying model schema.

Exposed fields by entity

Exposed fields by entity
Field	Business meaning	Sensitivity	Shape	Example
name	Display label for the tag.	PUBLIC	DESCRIPTIVE	—
slug	URL-safe tenant-local tag identifier.	PUBLIC	IDENTIFIER	—
color	Optional UI color for tag badges.	PUBLIC	DESCRIPTIVE	—

Domain · inventory

Warehouse

A physical storage location where products are stocked.

Context·Warehouses are the inventory nodes. Each product can have stock across multiple warehouses. One warehouse is typically marked as default for order fulfillment.

Exposed fields by entity

Exposed fields by entity
Field	Business meaning	Sensitivity	Shape	Example
name	Warehouse name or code.	INTERNAL	DESCRIPTIVE	Main Warehouse
status	Operational status.	INTERNAL	DESCRIPTIVE	ACTIVE
isDefault	Whether this is the primary fulfillment warehouse.	INTERNAL	OTHER	true
capacityM3	Total storage capacity in cubic meters.	INTERNAL	OTHER	12500

Related entities

Other entities this product references. Use them as breadcrumbs when you map the product against your own data model.

Related entities
Relationship	Target entity	Cardinality	Description
stores	StockLevel	many	Stock levels for products in this warehouse.

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Brand

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Category

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Product

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Service

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Tag

Exposed fields by entity

Warehouse

Exposed fields by entity

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Enterprise