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Certification directory

Directory updates

Scoring methodology, catalog coverage, and transparency changes. For live rankings see Credential rankings and the metric glossary.

Credential scoring recalibration

We recalibrated Authority Index scoring so professional credentials rank above associate tiers within the same vendor, widened score spread for clearer bands, and added transparent methodology copy with editorial confidence disclaimers.

  • Difficulty bucket now rewards lower pass rates — rigorous exams score higher than accessible ones.
  • Level-tier structural adjustment: Foundation −3, Associate 0, Professional +6, Executive +2.
  • Letter grades recalibrated to match the catalog (A ≥ 88, B+ 80–87, B 72–79).
  • Rankings page includes methodology glossary, CVI vs Authority Index guidance, and editorial estimate disclaimers.
  • Scorecard detail shows an “Editorial estimate — ±5 pts” badge until five verified holder reviews publish.
  • Seed data audit: GCP Professional Cloud Architect, ISC2 CISSP, and track-level signal scores adjusted.
  • Maintenance: quarterly catalog discovery (candidates only), annual drift check, and local inspect scripts (`npm run directory:inspect`).