3. Product / Good (Range: 300 - 399)

The Product / Good entity category establishes the global identification and routing standards for physical objects, manufactured goods, digital products, and commercial models.
Unlike other taxonomies that create thousands of redundant sub-classes, the global metadata standard Schema.org maintains a flat structure for products. It relies on Structural Entities to describe how a product exists in the market (e.g., as a blueprint/model, a variant, or a serialized physical item). The GSID architecture aligns with this philosophy, utilizing the primary class prefix 3 (Core Entity) and allocating the two-digit Semantic Blocks into:

• Native Subclasses: Direct, native Schema.org classes.
• Domain-Specific Blocks: Using the official ProductModel or Product class paired with dedicated two-digit category codes designed to provide industry-specific context for AI crawlers and Large Language Models (LLMs).

The GSID Product classification architecture is built directly upon the structured vocabulary of Schema.org/Product and Schema.org/ProductModel, promoting native semantic interoperability.

Under the global GSID protocol (XX00.000.000000), the Product / Good entity is assigned the three-digit class prefix range 300 to 399.

• The first digit 3 designates the primary Product / Good schema.
• The subsequent two digits designate the standardized product block and industry subcategory.

Syntax Example: DE45.302.000352

• DE45: Authorized Registrar (e.g., Germany / example.de)
• 302: Product Category -> ProductModel
• 000352: Unique product blueprint/model serial number

Block 300 - 309: Native Product Core (Structural Architecture)

This block defines the fundamental nature and physical lifecycle of the product data record.

• 301 | Product – The basic, universal class for any physical or digital asset.
• 302 | ProductModel – The model, prototype, or blueprint of a product (e.g., iPhone 15 Pro, Titan Cement X). This represents the foundation for 90% of commercial registry entries.
• 303 | ProductGroup – A group of related products sharing variants (e.g., the same apparel model in 4 different colors and sizes).
• 304 | IndividualProduct – A single, specific physical item with a unique serial number (e.g., a specific used car, a unique piece of art, or a registered machine).
• 305 | SomeProducts – An unspecified quantity of identical, bulk products (e.g., a commercial stock of 500 identical screws).
• 306 - 309 | Reserved – Reserved for future structural core updates of Schema.org.

Block 310 - 329: Vehicles & Mobility (Native Schema.org Vehicle Hierarchy)

Vehicles represent one of the few consumer goods with an extensively developed, native subclass hierarchy in the Schema.org tree.

• 310 | Vehicle – The parent class for any physical transportation medium.
• 311 | Automobile – Passenger cars, sedans, SUVs, and light vehicles.
• 312 | Motorcycle – Motorcycles, motorbikes, and scooters.
• 313 | Bicycle – Conventional non-motorized bicycles.
• 314 | MotorizedBicycle – E-bikes, mopeds, and motorized cycles.
• 315 | Bus – Commercial buses, coaches, and transit vehicles.
• 316 | Boat – Boats, yachts, and pleasure crafts.
• 317 - 329 | Reserved – Reserved for future transit and vehicle types.

Block 330 - 339: Health, Medical & Bio-Products (Native Schema.org Health Types)

Highly regulated consumer and clinical products situated natively within the Schema.org vocabulary.

• 330 | DietarySupplement – Vitamins, dietary supplements, and athletic nutrition products.
• 331 | MedicalDevice – Medical machinery, diagnostic tools, and clinical health wearables.
• 332 | Substance – Distinct chemical or biological substances and industrial raw materials.
• 333 - 339 | Reserved – Reserved for medical and pharmaceutical product expansions.

Block 340 - 399: Domain-Specific Product Blocks (Industry Mapping)

Since Schema.org does not feature native classes like "FoodProduct" or "BuildingMaterial", the GSID routing protocol uses the official ProductModel (or Product) entity, where the specific double-digit block indicates the commercial sector to AI crawlers:

Block 340 - 349: Fast-Moving Consumer Goods (FMCG / Grocery)

• 340 | ProductModel [Food & Beverage] – Packaged foods, olive oils, bottled wines, and artisanal cheeses.
• 341 | ProductModel [Cosmetics & Personal Care] – Cosmetics, skincare, soaps, and hygiene items.
• 342 - 349 | Reserved – Reserved for FMCG expansions.

Block 350 - 359: Construction, Materials & Industry

• 350 | ProductModel [BuildingMaterials] – Bricks, cements, insulation materials, and structural aggregates.
• 351 | ProductModel [HardwareAndTools] – Hand tools, power tools, industrial equipment, and heavy machinery.
• 352 - 359 | Reserved – Reserved for industrial sectors.

Block 360 - 369: Technology & Consumer Electronic

• 360 | ProductModel [Electronics] – Smartphones, laptops, screens, IoT devices, and smart gadgets.
• 361 | ProductModel [HomeAppliances] – Large and small home appliances (refrigerators, washing machines, AC units).
• 362 - 369 | Reserved – Reserved for technological hardware.

Block 370 - 379: Apparel, Footwear & Fashion

• 370 | ProductModel [Clothing] – Clothing items, garments, apparel collections, and wear.
• 371 | ProductModel [Footwear] – Shoes, boots, and athletic footwear.
• 372 | ProductModel [JewelryAndLuxury] – Watches, jewelry, and luxury personal accessories.
• 373 - 379 | Reserved – Reserved for fashion sectors.

Block 380 - 389: Furniture & Home Living

• 380 | ProductModel [Furniture] – Household and office furniture, beds, tables, and chairs.
• 381 | ProductModel [HomeDecor] – Light fixtures, carpets, textiles, and decorative home items.
• 382 - 389 | Reserved – Reserved for interior design products.

Block 390 - 399: Reserved for Global Product Expansions

• 390 - 399 | Reserved – Reserved for emerging technologies, digital assets, and future product paradigms.