Direct answer
Modernization should begin by recovering the system’s actual data model, business rules, integrations, and operational dependencies—then replacing a bounded capability with measurable validation.
Signals to look for
- Only one person knows how a critical rule works
- The database can be queried but the application is hard to change
- Exports and side systems compensate for missing workflows
- A rewrite estimate assumes the current requirements are already documented
How to evaluate the decision
- 01
Map schemas, jobs, integrations, reports, and users
- 02
Separate behavior to preserve from accidental legacy constraints
- 03
Build repeatable migration and reconciliation checks
- 04
Define rollback and a clear cutover owner
Where Bondi fits
Bondi’s Legacy System Modernization path combines an implementation assessment and migration project with a versioned, data-first production platform.
Related solutionFrequently asked questions
Is modernization included in the subscription?
No. Assessment, onboarding, migration, and implementation are scoped separately; the resulting system runs on a Bondi subscription.
Must we replace everything at once?
No. A bounded operational slice with reconciliation and rollback is normally the safer starting point.
Sources
- NIST SP 1500-10r1 — Adoption and Modernizationchecked 2026-08-03