What makes government digital transformation succeed
Lessons from three years of public-sector transformation programs across government ministries and agencies.

Public sector transformation is judged differently to commercial change. Success is not only efficiency but fairness, accessibility and the ability to explain a decision to the person affected by it.
The programmes that work start with the service as the citizen experiences it, end to end, rather than with the system that happens to be due for replacement. Mapping the real journey usually reveals that the slowest step is a handoff, not a technology.
Legacy systems are rarely retired in one move. A staged approach, where new services are built alongside the existing platform and traffic is shifted progressively, keeps risk contained and lets teams learn in production.
Procurement shapes outcomes more than architecture. Contracts that specify a fixed set of features tend to deliver exactly that, even when the need has changed. Scoping around outcomes with room to adapt produces better services.
Accessibility and language coverage are not optional extras to be added at the end. They influence content design, form structure and testing, so they belong in the first sprint.
Data sharing between agencies is usually the hardest part and the greatest source of value. It requires a clear legal basis, careful minimisation and a governance forum with the authority to make decisions.
Finally, publish measures. Programmes that report completion rates, processing times and user satisfaction openly tend to keep improving, because the numbers create honest pressure.