Legacy system modernization means replacing or wrapping unsupported software while the business keeps running: assess the estate, stabilize risk, then strangler-fig replace capabilities behind stable interfaces with parallel-run proof before each cutover. Symbiosis AI runs that path end to end - including documentation recovery from tribal knowledge - so you are not betting the company on a single rewrite weekend.
- Portfolio assessment: inventory, dependency mapping, risk & cost scoring per system
- Strangler-fig execution: carve bounded capabilities out of monoliths behind stable interfaces
- Parallel-run & reconciliation harnesses so cutovers are boring
- Documentation recovery: turning tribal knowledge into living specs
Questions, answered
What is legacy modernization?
Moving unsupported or brittle systems onto platforms your team can maintain, usually by extracting capabilities behind seams and proving each cutover with parallel runs.
How is legacy modernization different from a rewrite?
A rewrite replaces everything at once against incomplete specs. We replace bounded capabilities with characterization tests and parallel runs so risk falls slice by slice.