Software modernisation

We compare code condition, business requirements, maintenance cost and migration risk. A complete rewrite is an option, not a starting assumption.

Yes. We begin with discovery, user conversations and code analysis, documenting critical processes and module dependencies as understanding develops.

We usually plan for that. Change windows, data migration and rollback options are defined according to the architecture and operational requirements.

We consider business impact, recurring problems and technical dependencies. We look for an area that can be changed in a controlled way and whose result can be assessed. The oldest module does not necessarily need to come first.

We identify essential behaviour and establish ways to check it. These may include automated tests, acceptance scenarios and comparisons using sample data. We expand these safeguards alongside changes, starting with the area being modernised.

We define backups, data mappings and completeness checks. We rehearse the migration and compare its result with the source system. The switch plan also sets out how to handle discrepancies and when to return to the previous solution.

Yes, if system dependencies allow it. We can extract a function, change an integration interface or update a selected part of the application. First, we check what additional work is needed for that part to keep working with the rest of the system.