What is data migration - and why is it crucial?

Data migration means transferring your existing data securely, completely and consistently to a new system - whether you are switching ERP systems, migrating to the cloud or merging data sources. Incorrect planning can lead to data loss, inconsistencies and considerable additional work - with implications for compliance, reporting and trust in your new processes.

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The six phases of professional data migration

At DI Experts, we structure the migration process into six clearly defined phases to ensure a controlled and transparent transition:

1. analysis & scoping

Together, we identify relevant data objects, use stakeholder workshops and define clear objectives. Which data is really needed? Which can remain archived?

2. data model & mapping

We develop a target schema: field assignments, data formats, transformations, duplicate rules. This creates a clean, maintainable data model - the basis for quality.

3. data cleansing

Old data is standardized, duplicates are removed and missing information is added. A clean database minimizes problems later on - a decisive investment protection.

4. test migration & verification

Multiple test runs validate structure and content. Key users test realistic scenarios - before the real go-live begins.

5. migration & cutover

The final data migration is clearly planned - with a look-back strategy, freeze window and rollback plan. In this way, we avoid unpleasant surprises and ensure production capability.

6. post-migration & stabilization

After the cutover, we verify completeness, correct any final problems and hand over the system. At the same time, we ensure knowledge transfer and define future governance/quality checks.

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Why DI Experts makes the difference in data migration

• Holistic strategy instead of technical transfer: Focus on data quality, responsibilities and interfaces.
• Security and compliance focus, e.g. GoBD-compliant handover for financial accounting systems.
• Experienced team for complex migrations - including SME and corporate projects, ERP migrations and cloud implementations.
• Tools & methods that enable a step-by-step approach - mapping tools, test frameworks, snowflake reports.

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Your added value at a glance

• Risk minimization: through planned phases, test runs and clear freeze times
• Data quality guaranteed: through cleansing before the cutover
• Quick to use: Your users start directly with reliable data.
• Future viability: governance for consequential changes, data stewardship & monitoring.

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Conclusion

Successful data migration combines technology with structure. DI Experts accompanies you throughout the entire process - from analysis to handover. We deliver a resilient result that not only works technically, but also creates real added value - today and tomorrow.