Entities and relationships involved with order fullment in Revenue Cloud
"Commercial" Product Spec, "Marketing"/"Sellable" Product Spec, "Technical" Product Spec, Atomic, Attribute Value Transformation, Attribute Value Transformation Group, Bundle Offer, Business Rule Engine, Composite, Fulfillment Step Definition, Fulfillment Step Dependency Definition, Fulfillment Step Definition Group, Product(Product2), Product Decomp Enrichment Rule (BPO), Product Fulfillment Decomp Rule, Product Fulfillment Scenario, Product Specification Type, Product, Rule Set, Simple Offer
See Salesforce Data Model Notation.