Modernize Without
Breaking Production.

Move from one risky release train to modular, independently deployable services. We carve out bounded contexts, route traffic via strangler patterns, and ship with DevSecOps controls—so modernization is measurable, not mythical.

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Strangler Migration

Domain Boundaries

Governed Releases

Modernization Patterns Used in Real Production

2.8x
Release Frequency

Smaller services, safer deploys, faster iteration.

0-DT
Modernization Approach

Strangler routing + incremental extraction.

100%
Governed Pipelines

Policy gates, SBOMs, scans, and audit trails.

$0.
Big-Bang Rewrite

Modernize incrementally—keep the business running.

Beyond the Rewrite Fantasy.
De-Coupling That Survives Day 2.

Most modernization fails because teams cut code without fixing domain boundaries, data coupling, and release governance. We de-couple services with safe routing, data migration patterns, and delivery controls—so shipping gets easier over time.

The De-Coupling Failure Pattern

What most teams accidentally ship:

  • Services Still Tied to the Same DB

    “Microservices” that share tables and deploy together.

  • No Routing Strategy

    Traffic cutovers done in one shot with high risk.

  • Missing DevSecOps Gates

    No policy controls, no SBOM, no repeatable release safety.

The Coretus De-Coupling Standard

Production-grade modernization:

  • Domain Boundaries + Contracts

    Bounded contexts, API contracts, and integration discipline.

  • Strangler Routing + Safe Cutovers

    Incremental traffic shifting with observability and rollback.

  • Governed DevSecOps Pipelines

    Policy gates, scans, SBOMs, and audit trails for every release.

Smaller Changes. Safer Releases. Faster Teams.

Strategic Capabilities.

Turning a monolith into modular delivery units—without operational chaos.

Service Decomposition

Identify seams, slice bounded contexts, and extract services with clear contracts.

  • DDD Boundaries
  • Contract-First APIs

Strangler Routing

Traffic routing patterns for incremental cutovers with rollback safety.

  • Feature Flags
  • Canary + Rollbacks

Data De-Coupling

Break database coupling using migration patterns aligned with service boundaries.

  • CDC + Outbox
  • Schema Independence

Event-Driven Integration

Reduce synchronous dependencies with events, queues, and reliable messaging patterns.

  • Idempotency
  • Saga Patterns

DevSecOps Guardrails

Secure-by-default pipelines with policy gates and audit trails for modernization releases.

  • SBOM + Scans
  • Policy as Code

Observability Baseline

Logs, metrics, traces, and SLOs so you can cut over confidently.

  • Tracing
  • SLO Dashboards
/// De-Coupling Blueprint

A Hardened Path from
Monolith → Modular.

Boundaries + Contracts

Architecture Integrity

Domain mapping, bounded contexts, and API contracts that prevent “distributed monolith” outcomes.

Bounded Context Mapping
Contract-First APIs
Integration Discipline
DDDContractsSeams

Routing + Cutovers

Zero Downtime

Strangler routing, feature flags, and canary rollouts to migrate safely in production.

Traffic Splits + Canaries
Rollback Paths
Progressive Cutovers
FlagsCanaryRouting

Data De-Coupling

Safe Migration

Patterns like outbox/CDC, anti-corruption layers, and schema independence to avoid cross-service coupling.

CDC + Outbox
Anti-Corruption Layer
Schema Independence
CDCOutboxACL

DevSecOps Guardrails

Release Safety

Policy-as-code, secure delivery, and audit trails so modernization doesn’t weaken risk posture.

SBOM + Dependency Scans
Policy Gates
Audit Trails + Approvals
SBOMPolicyAudit
/// De-Coupling Accelerator

Extract Services.
Keep Uptime.

We deploy the Coretus De-Coupling Kernel™—a pre-hardened foundation for boundary mapping, routing, data de-coupling patterns, and DevSecOps governance.

Your teams focus on service logic and business outcomes, not re-building migration scaffolding.

4-9 Wk

Time-to-First Extraction

1st 3

Candidate Services Delivered

Built for policy gates, rollback safety, and observable cutovers.
Cutover Safe

Your Monolith Reality

Shared DB • Shared Releases • Shared Risk

Coretus De-Coupling Kernel v2.4

Boundaries

  • • DDD
  • • Contracts

Routing

  • • Flags
  • • Canary

Data

  • • CDC
  • • Outbox

Govern

  • • SBOM
  • • Policy
/// Modernization Pods

Deploy De-Coupling Delivery Squads.

Integrated units specialized in boundary mapping, extraction, migration safety, and DevSecOps governance—so you modernize continuously, not chaotically.

Domain Architect

Maps bounded contexts, contracts, and migration order so extraction reduces complexity—not relocates it.

DDDContractsSeams

Cutover Engineer

Implements strangler routing, flags, canaries, and rollback strategy for safe production migrations.

FlagsCanaryRollback
0.1%
Error Budget Target
Governed Releases Included

Pods arrive with patterns, checklists, pipeline gates, and observability hooks—built-in from day one.

Data Migration Lead

Designs CDC/outbox patterns, schema boundaries, and safe migration sequencing for de-coupled data.

CDCOutboxSchemas

DevSecOps Lead

Embeds policy gates, SBOMs, scans, and approvals so modernization improves risk posture.

SBOMPolicyAudit
/// Architectural Integrity

The De-Coupling Blueprint.

De-coupling is a system: boundaries, routing, data patterns, delivery gates, and observability—engineered to keep production stable.

01. Boundary Mapping

DDD contexts, contracts, and extraction order to reduce coupling safely.

Focus:
DDD • Contracts • Seams

02. Routing Layer

Strangler patterns, feature flags, and canaries for gradual production cutovers.

Focus:
Flags • Canary • Rollback

03. Service Extraction

Independent deployable services with repeatable pipelines and operational ownership.

Focus:
CI/CD • Versioning • SLOs
Modular Delivery

04. Govern + Observe

Policy gates, SBOMs, scans, logs, metrics, and traces for controlled evolution.

Focus:
SBOM • Policy • Tracing
Governed
Modular
Cloud-Ready
/// Delivery Framework

The Road to De-Coupled Delivery.

A phased model that avoids brittleness: boundaries, routing, data de-coupling, then scale.

Phase 01

Discovery + Boundary Mapping

Map domains, coupling hotspots, integration surfaces, and success metrics for extraction.

Output: De-Coupling Blueprint
Phase 02

Routing + Cutover Design

Design strangler routing, flags, canaries, and rollback plans before any service extraction.

Output: Safe Migration Plan
Phase 03

Service Extraction + Data Patterns

Extract services, implement CDC/outbox, and separate schemas for true independence.

Output: First Modular Services
Phase 04

Govern, Observe, Scale

Add policy gates, SBOMs, SLOs, and observability to scale modernization safely.

Output: Repeatable Modernization Factory
/// Outcomes

Proven Modernization Wins.

Modernization Case Archives
56%
Lead Time Down

De-Coupling a Legacy
Release Train

A monolith forced coordinated deployments and high-risk releases.

Introduced routing cutovers + extracted services with DevSecOps gates and observability.

"We stopped fearing deployments—smaller services made releases routine, not risky."

EN
Engineering Manager
SaaS Platform
3.2x
Deploy Velocity

Extracting Services
Under Live Traffic

Releases were blocked by shared dependencies and brittle cutovers.

Shipped strangler routing + canaries with rollback and measurable service extraction milestones.

"Traffic shifting let us modernize continuously—without business downtime."

OP
Platform Lead
Enterprise Ops
/// De-Coupling Briefing

See the Modernization Route.

A fast breakdown of boundaries, routing cutovers, data patterns, and governance to safely de-couple the monolith.

Coretus Monolith De-Coupling Briefing
Platform Lead
Principal Engineer
Modernization Lead
01:55 • ROUTE MODE

Boundaries

DDD contexts + contracts that reduce coupling.

Routing

Strangler patterns + canaries + rollback safety.

Governance

Policy gates, SBOMs, and release audit trails.

/// De-Coupling FAQs

Frequently Asked
Modernization Specs.

Service Identity
Monolith De-Coupling

How do you avoid a distributed monolith?

We start with boundaries + contracts, then enforce schema independence and integration discipline.

Can we migrate without downtime?

Yes—strangler routing, canaries, feature flags, and rollback paths are designed before extraction.

How do you de-couple the database?

We use CDC/outbox, anti-corruption layers, and migration sequencing aligned with service boundaries.

Where does DevSecOps fit in?

Every release ships with policy gates, scanning, SBOMs, and audit trails—built into the pipeline.

How do we know when cutovers are safe?

We establish observability baselines and SLOs so traffic shifts are measurable and reversible.

De-Coupling Feasibility?

We can deliver a rapid feasibility + boundary audit to identify the first 3 extraction candidates and cutover plan.

Request De-Coupling Briefing

De-Couple Your Monolith Safely.

Stop betting the company on a rewrite. We decompose monoliths with domain boundaries, strangler patterns, and DevSecOps guardrails—so you ship faster without breaking production.

Incremental (No Big-Bang Rewrite)

Zero-Downtime Migration Paths

Security + Governance Built-In

Request De-Coupling BriefingRequest De-Coupling Briefing