Modernization

From legacy code to running systems.

Concho automates the journey from legacy code to migration plan to modernized applications — full-codebase analysis, structured validation, and confidence scoring for predictable outcomes.

COBOL
.NET

The problem

You can't modernize what you don't understand.

70% of large-scale modernizations fail — not because of bad technology, but because nobody fully understood the existing system first. LLMs alone can analyze only about 30% of a large codebase before hitting context limits. The rest gets guessed at. Concho analyzes 100%.

Source: McKinsey

What Concho adds

Full-codebase intelligence

Business rules, architecture layers, and integration points indexed across your entire codebase before planning begins.

Affinity-driven migration

Not everything transcodes 1:1 — and you probably don't want it to. Concho preserves business rules while eliminating legacy constraints.

Built-in validation

Every claim about your legacy system is checked against the source before it enters the plan. No fabricated file references. No invented rules.

How it works

Six steps from analysis to deployment.

01 · Analyze
Map current architecture, business rules, data schemas, integrations, and code-to-data mapping across the full system.
02 · Plan
Select target subsystems, extract rules, define affinity boundaries, design service architecture, and map the cutover strategy.
03 · Validate
Every assumption is automatically checked against the source system. No hallucinations make it into the plan.
04 · Review
Guide architecture decisions, make course corrections, and iterate until the plan is exactly right.
05 · Generate
Produce containerized services, database schemas, deployment scripts, and modern UI — all governed by validated affinity rules.
06 · Ship
Stakeholders receive a comprehensive report covering analysis, the plan, and generated artifacts. Review, approve, deploy.

In the field

If Concho can untangle this, it can untangle yours.

Enterprise-scale platform

Petra Modernization Analysis

Interconnected systems, layered architecture, operational dependencies, and evolving technical debt — analyzed end-to-end with a structured migration strategy.

System architecture analysis
Dependency discovery
Technical debt visibility
Migration planning and roadmap

Enterprise-scale modernization intelligence across the full application landscape.

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48-year-old COBOL ERP

ACAS Payment Processing

Deeply embedded business rules and decades of architectural sprawl — analyzed in full, with hidden operational constraints surfaced and a complete modernization blueprint produced.

Business rule discovery
Dependency mapping
Code translation strategy
Data migration planning

The legacy system limited payment processing to 9 invoices at a time. Concho identified the root cause and designed the path to eliminate it.

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Next step

1M+ LOC

619 files. 100% analyzed. Business rules no one remembered — surfaced automatically.

Ready to see what Concho finds in yours?

Modernization starts with understanding what you actually have. Bring us your worst system.