{
  "@context": "https://schema.org",
  "@type": "TechArticle",
  "@id": "https://anchorfact.org/kb/kb-2026-00250",
  "headline": "Entity-Relationship Model",
  "description": "The Entity-Relationship (ER) Model (Peter Chen, 1976) is a conceptual data modeling technique. Entities (objects: Customer, Order) have attributes and participate in relationships (places, contains). Cardinality: 1:1, 1:N, M:N. ER diagrams guide database schema design before implementation.",
  "dateCreated": "2026-05-22T14:59:47.576Z",
  "dateModified": "2026-05-22T14:59:47.576Z",
  "author": {
    "@type": "Organization",
    "name": "AnchorFact"
  },
  "publisher": {
    "@type": "Organization",
    "name": "AnchorFact",
    "url": "https://anchorfact.org"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "anchorfact:confidence": "high",
  "anchorfact:generationMethod": "human_only",
  "citation": []
}