Maturity Band

Maturity Band

A Maturity Band is a position on the Advanta 5‑Band Maturity Stack that describes how systematically an organisation, function, or individual AI use case is governed and operated. It is a qualitative posture descriptor, not a numerical score or percentile.

Each Band has:

• Named characteristics
• Expected artefacts (evidence you can read)
• Typical failure modes
• A defined lift required to move to the next Band

Two organisations at the same Band are recognisably similar in posture and evidence, regardless of size, sector, or vendor stack.

The Five Bands

1. Band 1 — Latent
   • AI use is undirected, informal, and often invisible.
   • Individual users adopt tools without governance, evidence, or measurement.
   • Absent artefacts: no AI Charter, no AI Register, no defined method.
2. Band 2 — Emerging
   • First governance artefacts appear.
   • Examples: draft policy, early procurement standard, first AI risk register entry.
   • Use is uneven across teams; practice is still ad‑hoc.
3. Band 3 — Programmatic
   • Governance is operated on a recurring cadence.
   • Core pillars (Risk, Use Cases, Vendor, Change) produce artefacts at known intervals.
   • The methodology is named and versioned.
4. Band 4 — Institutional
   • The methodology is run portfolio‑wide and embedded in the operating model.
   • Reflected in hiring, training, compensation, partner KPIs.
   • ROAI (Return on AI) is measured and reviewed.
5. Band 5 — Definitional
   • The organisation helps define the canonical methodology for the wider profession.
   • Contributes frameworks, public artefacts, supervisory reference points, and category‑shaping practices.

How Bands Are Assigned

• Bands are assigned by reading artefacts against the canonical Band descriptors.
• The assessor does not score; they identify the Band whose descriptor the evidence matches.
• If evidence straddles two Bands, the lower Band is assigned.
• Bands are floors, not aspirations: an organisation operates at Band N when its least mature canonical artefact is Band N.

Why Maturity Bands Matter

• Comparability – Two functions at Band 3 can be compared like‑for‑like because the descriptors are public and methodological.
• Investment planning – Moving from Band 2 → 3 is qualitatively different work from moving 3 → 4; explicit Bands make the work plannable.
• External signalling – A Band rating under a named methodology with audited evidence is a defensible artefact for supervisors, partners, and clients.

Distinction from Adjacent Concepts

• Not a marketing label – Bands have published descriptors and named entry criteria.
• Not a Tier – Tiers (1–4) describe an AI capability’s autonomy; Bands describe the operating posture governing that capability.
• Not defensibility – Defensibility is the quality of evidence under a Band; the Band itself describes what artefacts exist and how they are operated.