Inventory dependencies, not only products
A useful register includes owners, users, servers, databases, integrations, authentication, file formats, criticality and allowed downtime. Hidden dependencies such as macros, device drivers, plug-ins and scripts are often more important than the application catalogue itself.
Separate business requirements from familiar interfaces
Users naturally describe a requirement through the button they know. Restore the underlying business function: what action is performed, which result moves to the next stage and which constraints are mandatory. Compare solutions against that workflow rather than visual similarity.
Prove compatibility through a pilot
Vendor matrices and official registers are important inputs, but they do not prove compatibility with the company’s exact hardware, database, electronic signature and integrations. Build a test environment and include difficult documents, peripheral devices, reports, exchanges and remote-work scenarios.
Migrate in reversible waves
Group connected systems and departments into controlled waves. Prepare data, instructions, first-line support, a change window and a tested rollback for each wave. Parallel operation is useful only when data synchronisation rules are explicit.
The transition is complete when updates, monitoring, licences, backup, training and change management have owners and budgets. A well-managed replacement programme reduces technology risk instead of simply moving it into production.