Software Modernization
Established web applications and legacy systems are renewed step by step, without jeopardizing ongoing operations.
What it is — and what it includes.
Software modernization is the controlled renewal or replacement of established software (legacy) — typically web applications on outdated framework versions, untested PHP codebases or legacy systems behind a portal. Batunet modernizes step by step — often using the strangler fig pattern — so that the old system keeps running until the new one has safely replaced it.
Scope of services
- Analysis of the existing system and its risks
- Step-by-step replacement (strangler fig)
- Data migration with a tested backup and restore procedure
- Parallel operation and controlled cutover
- Knowledge retention and documentation
How we build. The Batunet Engineering Method.
Seven phases — from the first question to operations years later. Not a project process, but the way we think.
- 01
Frame
The actual problem, its boundaries and a measurable definition of success are established before any solution is considered.
- 02
Model
The domain is modeled and sliced into contexts — with a precise, shared language.
- 03
Decide
The load-bearing decisions come first — deliberately and documented, while change is still cheap.
- 04
Prove
A walking skeleton proves the architecture on the riskiest path — before going broad.
- 05
Build
On top of the proven skeleton, the system grows in verifiable, reversible steps — with progress visible every week.
- 06
Harden
Failure cases, load and security are tested, not assumed. “It runs” becomes “it holds.”
- 07
Operate
We operate, monitor and keep evolving the system — and keep it understandable and changeable.
What you can rely on.
- 01
A path away from the legacy system that does not put operations at risk
- 02
Software that is maintainable and extensible again
- 03
Documented knowledge instead of dependence on individuals
Technologies we use
Questions about Software Modernization
Do we have to replace everything at once?
No. We replace the legacy system in parts and redirect it function by function. A big-bang rewrite is rarely the right answer.
What happens to our data?
Data migration is planned, tested and made reversible. Backup and restore are proven before the cutover.
Continue your engineering journey.
Related concepts, decisions, playbooks and perspectives — as one connected path, not a list of links.
Technologies
Let’s talk about your project.
No sales team. A direct conversation with the management.
