A domain enters the engine as one or more data sources — a connector plus a field mapping (ADR-006). Each source is ONE system's view. The intake form validates, previews the canonical rows, and runs the structural checks on them; cross-system checks activate when ≥2 sources run together. Editing is the approval-gated write path (ADR-005); this view is read-only.
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orders
1 source(s)
orders_sample_system_crm
sample
crm
order_ref
sample
n:50 · seed:42
seeded sample source — orders as seen by the CRM system (synthetic generator)
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products
1 source(s)
products_sample_system_a
sample
a
sku
sample
n:50 · seed:42
seeded sample source — products as seen by system a (synthetic generator)