Fasteer Factory

Your legacy modernized in weeks, not years.

VB6, COBOL, RPG/AS400 → modern production code. ~96% demonstrated equivalence, module by module. You pay for the result, not the consumption.

~96%

functional equivalence demonstrated

module by module, Viseo test methodology

~85%

less expensive than commercial LLMs

via FRIO technology, depends on volume and mix

The languages that govern your critical processes

VB6COBOLRPG / AS400DelphiPowerBuilderPHP legacyABAP custom

Analysis, modernization, maintenance — one factory

Fasteer Factory consolidates Smart Analysis, Smart Modernization, and Smart Maintenance. You don't need three separate products and three separate contracts.

Smart Analysis

Map, understand, and document your codebase before any decision. Dependency map, effort estimate, risk areas.

Smart Modernization

Convert VB6, COBOL, RPG/AS400 to modern stacks with verified functional equivalence, module by module.

Smart Maintenance

Keep the modernized code healthy: continuous monitoring, CVE alerts, dependency management, drift detection.

Three milestones. You pay for the result, not the consumption.

Assessment at fixed price → PoC on a pilot module → Incremental rollout per module / per KLOC. You decide whether to continue after each step.

01

Assessment

Fixed price

Legacy map, dependencies, dead code, module-by-module effort estimate. Black on white perimeter — before any commitment.

  • Codebase scan and full documentation
  • Dependency and dead code map
  • Module-by-module effort estimate
  • Delivered in 2–3 weeks
02

PoC on pilot module

Milestone payment

One real module transcoded with demonstrated equivalence. Proof before rollout — not a presentation, a working module.

  • Real module transcoded end-to-end
  • ~96% equivalence demonstrated (depends on language and complexity)
  • Human review and approval
  • Go / no-go checkpoint before rollout
03

Rollout

Per module / per KLOC

Incremental rollout, one module at a time. Price per module or per KLOC, with bands by complexity. You pay for the result, not the consumption.

  • Pricing per module or per KLOC
  • Bands by language and complexity
  • Equivalence test before each module goes live
  • Independently activatable — no all-in commitment

Not a black box. Equivalence is verifiable.

Functional equivalence is demonstrated module by module using the Viseo test methodology. The team reviews and approves each part before going to production. ~96% — not a claim, a measurement.

  • Visual equivalence test: input/output comparison

  • Human review and approval at each module

  • Full audit trail of the entire modernization

  • ~96% equivalence (depends on language and complexity)

The economics of modernization — before and after AI

Commercial LLMs (e.g. GPT-4)Baseline
Fasteer Factory via FRIO~85% less

Depends on volume, language and complexity.

Tell us your legacy code. We tell you the cost.

Language, LOC, business constraint — that's all we need. Assessment in 48 hours.

Book a demo