Replace Brittle Systems Without Breaking Operations

Irys DTSI engineers modern replacements for aging platforms — migrating data, workflows, and institutional knowledge while maintaining full operational continuity.

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The Risk of Keeping Legacy Is Greater Than Replacing It

Legacy platforms accumulate technical debt, compliance gaps, and security exposure. The longer they run, the harder replacement becomes.

Vendor Support Expired Years Ago

Unsupported platforms receive no patches, no updates, no security fixes.

Security Mandates Can't Be Met

Zero Trust, cATO, and CMMC requirements are architecturally impossible on legacy.

Maintenance Consumes the IT Budget

Keeping old systems alive leaves nothing for advancing capability.

Data Locked in Proprietary Formats

Decades of operational data in schemas no modern tool can read.

From assessment to decommission, zero downtime.

Assess the legacy platform, design modern architecture, migrate data with validation, run in parallel, and cut over when proven.

Explore DTSI Services

Irys DTSI legacy replacement assessment dashboard

Assessment & Discovery

Map the legacy platform's technical debt, data, and dependencies.

Modern Architecture

Design a replacement architecture aligned to current mandates and mission needs.

Data Migration

Migrate institutional data with integrity verification at every step.

Parallel Operation

Run the new and old systems side by side until the replacement is proven.

Cutover & Decommission

Cut over once validated, then retire the legacy platform on a controlled schedule.

Legacy System Assessment

Evaluate technical debt, security exposure, and migration complexity.

Modern Architecture Design

Purpose-built replacement aligned to current mandates.

Data Migration & Validation

Institutional data migrated with integrity verification.

Parallel Operation

New and old systems run simultaneously until cutover is proven.

Zero Trust Alignment

Security architecture built into the replacement from day one.

Operational Sustainment

Ongoing support and continuous improvement post-cutover.

Architecture transformation

From monolith to modular.

Legacy system decomposed into modern, maintainable services — data flows preserved, security architecture upgraded, operational interfaces maintained.

One legacy system, decomposed. Monolithic platforms break into modular services that can be replaced and updated independently.
Data flows preserved through the cut. Existing interfaces and data flows keep working while the replacement is engineered underneath.
Operational continuity, proven before cutover. Parallel operation validates the replacement against real activity before the legacy system is retired.

Why Agencies Choose DTSI

44 years of government IT. Certified processes. Proven continuity.

44 Years of Government IT

DTSI has modernized DoD and federal platforms since 1980.

ISO 9001:2015 Certified

Quality management processes for complex transitions.

Operational Continuity

Parallel operation ensures zero downtime during cutover.

Customers + Partners

Trusted in IT & Cyber Expertise for 44 Years. We enable the DoD and all branches of service to maintain peak readiness and deliver mission results through proven technical expertise, operational support, and cybersecurity strength.