describes inter-related things of interest in a specific domain of knowledge;composed of entity types (which classify the things of interest) and specifies relationships that can exist between instances of those entity types
An entity–attribute-relationship diagram for an MMORPG using Chen's notation
An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things of interest) and specifies relationships that can exist between entities (instances of those entity types).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).