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Module USE-03 sigil: Use Cases pillar, Strategy layer, maturity bands 1 to 3.Deterministic sigil for Module USE-03. The Pillar geometry encodes Use Cases (Pillar 5); the top-right marker S encodes the Strategy layer; the baseline meter encodes maturity bands 1 to 3.SUSE-03
P5· L-M· Bands FoundationalOperational

· USE-03

Baseline Metrics Methodology

The Baseline Metrics Methodology defines how the firm captures the pre-AI operating baseline against which every subsequent ROAI measurement is calibrated. The Methodology specifies the metrics (time-to-complete, error rate, throughput, cost per matter), the sampling approach, the measurement window (typically 90 days pre-deployment), and the documentation standard required to defend a baseline to Finance or to an auditor. Without disciplined baselining, ROAI claims become directional anecdotes and the firm cannot evidence value to the Board or to clients. Methodology v2026.1.

strategic

·

Per-engagement

·

Approx. 18-week baseline sprint per engagement; re-baseline on major process or organisational change.

Methodology v2026.1·Verified 23 May 2026·Reviewed 23 May 2026

Executive Summary

The Baseline Metrics Capture Guide provides legal departments with a structured 18-week methodology for measuring current performance before AI implementation. Without validated baseline data, organisations cannot calculate ROAI, justify AI investment, or demonstrate value to executives. This module captures pre-AI benchmarks across four dimensions — operational efficiency, quality and accuracy, financial performance, and user experience — feeding directly into USE-04 dashboard KPIs, STR-08 ROAI calculations, and GOV-03 Risk Register population. Metric 0 is the AI Bill of Materials inventory, including an anonymous Shadow AI survey that quantifies Class 6 risk before the programme begins. Phase 5 produces the DPS zero-state documentation, establishing the Adoption and Sophistication lens starting points. Final deliverables are reviewed and approved by the AI Task Force (STR-07) before USE-02 Phase 2 deployment is authorised. No credible ROAI calculation exists without a validated baseline from this module.

Defensibility Evidence Produced

The DPS zero-state documentation produced in Phase 5 establishes the Adoption lens starting point (zero deployed use cases) and Sophistication lens baseline (pre-AI performance metrics). A programme with credible zero-state baseline data demonstrates deliberate, sequenced governance and produces a stronger Defensibility lens case than one that begins measurement mid-deployment.

Elements:

Methodology transparencyEvidence framework

Purpose

The Baseline Metrics Capture Guide defines how legal departments measure current performance before deploying AI. It ensures that every AI pilot or implementation has a defensible pre-AI benchmark across operational, quality, financial, and user experience dimensions. These baselines are mandatory inputs to ROAI calculations, governance artefacts, and scaling decisions.

Scope and Positioning

This module is used per engagement, before each AI pilot or implementation, and whenever significant process or organisational changes require re-baselining. It assumes a defined AI use case (USE-01), an initial pilot design (USE-02 Phase 1), and a draft business case (STR-05).

It produces the pre-AI comparison series for the Legal AI ROAI Dashboard (USE-04), denominator inputs for the ROAI Matrix (STR-08), and initial population of the GOV-03 Risk Register, including Shadow AI baseline counts.

Measurement Dimensions

  1. Operational Efficiency – Time per task, throughput, cycle time, and resource allocation patterns.
  2. Quality and Accuracy – Error rates by severity, revision cycles, client satisfaction, and compliance adherence.
  3. Financial Performance – Cost per matter, outside counsel spend, utilisation, and value generation metrics.
  4. User Experience – Attorney satisfaction, training and onboarding efficiency, system usability, and burnout indicators.

Agentic Tier implementations add a dedicated baseline for human intervention frequency, decision audit trail completeness, scope documentation, and error rates for autonomous-candidate tasks.

AI BoM Metric 0

Before any other data collection, the module requires an AI Bill of Materials baseline:

  • Inventory of approved AI tools in use and confirmation of BoM entries.
  • Anonymous Shadow AI survey to quantify unapproved AI usage.
  • Identification of existing vendor contracts with AI components.
  • Detection of AI features that are enabled but not tracked.

The Shadow AI count becomes the Class 6 baseline for policy compliance improvement.

DPS Zero-State

The module documents the organisation’s DPS zero-state:

  • Adoption lens – Confirmation that no formal AI deployment has occurred for the scoped use case.
  • Sophistication lens – Manual performance benchmarks (time, errors, cost per matter) as pre-AI standards.
  • Defensibility lens – Status of GOV-01, GOV-02, and GOV-03 at baseline date.

A credible zero-state is required before USE-02 Phase 2 deployment is authorised.

Implementation Phases

  1. Phase 1 – Planning (Weeks 1–2)
    • Confirm use case scope and pilot parameters.
    • Secure AI Task Force approval of measurement scope.
    • Configure data collection systems and complete AI BoM Metric 0.
  2. Phase 2 – Initial Data Collection (Weeks 3–6)
    • Connect to operational, financial, and matter systems.
    • Launch surveys, including Shadow AI usage.
    • Begin structured error and compliance tracking.
  3. Phase 3 – Baseline Period (Weeks 7–14)
    • Maintain consistent measurement.
    • Run weekly data quality checks and log process changes.
  4. Phase 4 – Analysis and Documentation (Weeks 15–16)
    • Compute descriptive statistics and segment by role, practice, and matter type.
    • Map findings to Risk Taxonomy 2026 classes and compare to STR-05 assumptions.
  5. Phase 5 – Review and Target Setting (Weeks 17–18)
    • Present results to STR-07 AI Task Force and leadership.
    • Set ROAI targets aligned with STR-08 thresholds.
    • Submit the baseline package as a gate for USE-02 Phase 2.

Operational Signals

use-03.baseline-coverage

Defensibility Posture Statement

Proportion of active use cases with documented pre-AI baseline — DE-2 Methodology transparency record.

Quarterly

use-03.baseline-currency

Annual Legal AI OS Index

Baselines refreshed within sample-validity window feeds the Annual Legal AI OS Index measurement signal.

Quarterly

use-03.baseline-confidence

Console

Documented confidence interval per baseline metric for Console intelligence substrate.

On change

Recommended Stakeholders

Owner

  • Head of Legal Operations

Approvers

  • General Counsel
  • Finance Partner

Contributors

  • AI Task Force
  • Engineering / IT

Informed

  • Board
  • Audit Committee

Inputs · Outputs

Inputs

  • · Confirmed AI use case scope from USE-01 (Use Case Prioritization Matrix)
  • · Pilot design parameters from USE-02 Phase 1
  • · STR-05 business case financial targets and projections

Outputs

  • · Validated baseline metrics package feeding USE-04 pre-AI comparison series and STR-08 ROAI denominators
  • · AI BoM inventory with Shadow AI count feeding GOV-03 Risk Register Class 6 entry
  • · DPS zero-state documentation for Adoption and Sophistication lenses
  • · ROAI improvement targets feeding STR-08
  • · Implementation recommendations for USE-02 Phase 1 pilot authorisation

Framework Crosswalk

NIST AI Risk Management Framework

NIST

Supports Govern and Map functions by establishing pre-deployment performance and risk baselines for legal AI use cases.

ISO/IEC 42001 Artificial Intelligence Management System

ISO

Contributes to performance evaluation and continual improvement requirements via structured baseline measurement and telemetry hooks.

EU AI Act Risk Management and Monitoring Obligations

European Union

Provides pre-deployment benchmarks needed to evidence risk management, monitoring, and post-market surveillance for high-risk legal AI systems.

Operational Artefacts

  • Baseline Metrics Capture Workbook

    xlsx · v2026.1

    Gated
  • Shadow AI and AI BoM Survey Template

    docx · v2026.1

    Gated
  • Baseline to ROAI Mapping Checklist

    checklist · v2026.1

    Gated

Diagnostic Relevance

Running the Baseline Metrics Methodology strengthens the Sophistication lens — expected Band progression: Foundational → Operational.

Confidence: high

Key Takeaways

  • Require a validated pre-AI baseline before any pilot or implementation proceeds.

  • Measure across four dimensions: operational, quality, financial, and user experience.

  • Establish AI BoM Metric 0 and Shadow AI count before collecting other metrics.

  • Document DPS zero-state for Adoption, Sophistication, and Defensibility lenses.

  • Capture Agentic Tier-specific baselines where autonomous workflows are planned.

  • Map baseline errors and compliance rates into the GOV-03 Risk Register by class.

  • Use baseline findings to validate and, if needed, revise STR-05 and STR-08 targets.

Run this Module

Operational artefacts available to Practitioner Membership members. Methodology v2026.1.

View Membership

Targeting

Audience

GC / CLOLegal OperationsRisk & Compliance

Strengthens

Adoption lensSophistication lens

Module Details

Format
Methodology
Difficulty
Foundational
Pillar
P5
Owner
Head of Legal Operations
Access
Practitioner Membership
Certification
Practitioner

Maturity Bands

FoundationalOperational

Where this Module lives

The Baseline Metrics Methodology is the measurement floor that ROAI builds on. It feeds VAL-01 (ROAI Matrix Framework) as the comparison baseline and produces DE-2 (Methodology transparency) and DE-3 (Evidence framework) records into the DPS. Without this Module, every ROAI score lacks a defensible 'compared to what' — and the Sophistication lens of the Annual Legal AI OS Index has no operational ground truth.

Advisory

When this Module sits inside a Programme.

Modules are operated in-house by GC and Legal Operations teams. When the capability transformation is multi-Pillar — or when the regulator timeline tightens — Advanta operates the canonical Module sequence as a Programme.