JSON-LD
コンピューターが「意味」を理解できるJSON形式。
JSON-LD (JSON for Linked Data) is a method of encoding Linked Data using JSON. It is used to provide machine-readable metadata that helps search engines and other web applications understand the context of information. It is the core of how Semantic Web technologies translate into practical, readable data structures.
graph LR
Center["JSON-LD"]:::main
Rel_schema_org["schema-org"]:::related -.-> Center
click Rel_schema_org "/terms/schema-org"
Rel_metadata["metadata"]:::related -.-> Center
click Rel_metadata "/terms/metadata"
Rel_xml["xml"]:::related -.-> Center
click Rel_xml "/terms/xml"
classDef main fill:#7c3aed,stroke:#8b5cf6,stroke-width:2px,color:white,font-weight:bold,rx:5,ry:5;
classDef pre fill:#0f172a,stroke:#3b82f6,color:#94a3b8,rx:5,ry:5;
classDef child fill:#0f172a,stroke:#10b981,color:#94a3b8,rx:5,ry:5;
classDef related fill:#0f172a,stroke:#8b5cf6,stroke-dasharray: 5 5,color:#94a3b8,rx:5,ry:5;
linkStyle default stroke:#4b5563,stroke-width:2px;
🧠 理解度チェック
🧒 5歳でもわかるように説明
Ordinary JSON is just a list of items. JSON-LD is like a list where every item has a link to a dictionary that explains exactly what it means, so a computer anywhere in the world knows exactly what you're talking about.
🤓 Expert Deep Dive
Uses '@context' to map JSON keys to IRIs (Internationalized Resource Identifiers). This enables interoperability between different datasets without having to agree on specific database schemas. It is a W3C Recommendation and widely used for Schema.org implementations.