The usual signals are rising maintenance costs, growing security and compliance risk, slow release cycles, and systems that can't integrate with modern platforms. If your technology is dictating what the business can do — rather than enabling it — it's time to assess.
In most cases incremental modernisation wins: we carve capabilities out of the legacy estate piece by piece, delivering value continuously while the old system keeps running. Full rewrites are reserved for cases where the existing platform genuinely can't be evolved.
Through incremental delivery, automated testing, parallel running of old and new systems, and rehearsed rollback plans. Each step is small enough to verify and reverse, so the business is never betting on a single high-stakes cutover.
Lower running and maintenance costs, faster and safer releases, improved security posture, and a platform that scales with the business. Just as importantly, your teams spend their time building new capability instead of fighting old systems.