Control Room/Future State
Mission Active

Strategy

Future-State Scenarios

Three pathways evaluated against scalability, integration complexity, and enterprise alignment. Scenario selection is the highest-impact decision in Phase 0.

DraftUpdated 18 Mar 2026Risk Assessment →Deprecation Plan →

Why this matters

Scenario selection determines the architecture trajectory for the next 18–24 months. This is the single highest-impact decision in Phase 0.

What this informs

Deprecation sequencing, platform cost estimation, vendor selection, and the Phase 1 scope and investment case.

What remains unresolved

Scenario A integration complexity not yet validated. Vendor shortlisting pending. Cost model requires scenario lock before completion.

Scenarios

3

Recommended

SCN-A

Timeline Range

6–24 mo

Principles Applied

6

Status

Evaluating

Scenario Comparison
SCN-A

Composable Best-of-Breed

Recommended path

Replace legacy systems with a composable architecture using best-of-breed services for each domain. Headless CMS, independent service APIs, unified experience layer. Maximum flexibility, highest integration complexity.

Advantages

No vendor lock-in — swap any component independently
Pace-layered evolution — each domain moves at its own speed
Best capability per domain — not constrained by platform limits
Regional flexibility — China can diverge without architectural debt
Future-proof — new capabilities plug in without re-architecture

Trade-offs

Highest initial integration complexity
Requires strong API governance and contract management
More vendor relationships to manage
Team needs composable architecture experience
Higher upfront investment in integration layer
Principles aligned
ComposableInteroperableDomain-driven
Timeline

18–24 months

Domain Architecture

Target Domain Map — Scenario A

Bounded contexts, domain APIs, and integration boundaries for the composable best-of-breed approach.

Draft

Architecture Lead

Integration Architecture — Target State

API gateway, event bus, and domain service interaction patterns for the recommended scenario.

Draft

Solution Architect

Evaluation Criteria
CriterionWeightSCN-ASCN-BSCN-C
Vendor independenceHigh
Time to first valueHigh
Long-term scalabilityCritical
Integration complexityMedium
China compatibilityHigh
Enterprise alignmentCritical
Team capability fitMedium
Total cost of ownershipHigh

Decision Layer

Decisions Supported

ADR-003 (composable DXP). Scenario selection is the highest-impact decision in Phase 0.

Dependencies

Scenario selection gates DEL-006 (deprecation), DEL-009 (cost estimate), and Phase 1 scope definition.

Next Actions

Stakeholder scenario walkthrough. Vendor shortlist for Scenario A components. Cost estimate refinement.

Confidence

Medium — scenarios well-defined but integration complexity validation and cost modelling are outstanding.

Discovery Control RoomSteerpoint