Topic explorer

connecting

Reviewed semantic catalogue · 2026-09-30. Records with reviewed release bounds are evaluated against Rel-98; unbounded records remain curated orientation metadata rather than guessed release claims. Coverage ↗

Topic Explorer

Navigate concepts that cut across series and WGs

Atlas taxonomy

5GC Service-Based Architecture

Rel-15+ · active in Rel-98

Stage-3 service APIs and discovery for AMF, SMF, UDM, AUSF and NRF.

SBIAMFSMFUDMAUSFNRF

Open feature lineage →

Topic stack

5GC Service-Based Architecture

SBI

AMF

SMF

UDM

AUSF

NRF

Trust model

Every relationship has provenance

✓ official◇ parsed● curated◌ inferred

Official = 3GPP metadata. Parsed = deterministic extraction. Curated = reviewed Atlas classification. Inferred = machine suggestion requiring review.

Reviewed semantic coverage ↗