Knowledge · Framework · Core · protocol

Entity

Define a named domain concept that can compose other entities

Definition

An Entity is a bounded domain concept that serves as the universal Classifier in the SBX framework (following MOF's Classifier pattern). Entity is a MULTI-LAYER INDEX — it spans all 4 FDD layers with PD as the source of truth and UI/SI/MD as projections MULTI-LAYER ARCHITECTURE (Entity as Index): IDEA: motivation — WHY this entity exists (vision, goals, drivers) ArchiMate Motivation Layer. PD: entities + attributes + references — WHAT this entity IS (source of truth) FDD Problem Domain.

Standards

  • OMG MOF 2.5.1 — Classifier
  • Domain-Driven Design — Entity, Value Object, and Cross-Aggregate Reference
  • ArchiMate 3.x — Motivation Layer

Knowledge References

  • aggregate pattern
  • repository pattern
  • bounded-context pattern

Schema Preview (13 fields)

  • motivation object — Business intent capturing why this entity exists and what it achieves
  • user_stories map — Step-by-step actor journeys that bridge motivation goals to function models
  • fixtures map — Master fixture set for this entity — test data owned by the entity