Tableau to Power BI modernisation programme
Rebuilding the analytical logic of business-critical dashboards so every discrepancy is visible for business validation, instead of hidden behind the final KPI.
Programme in progress. What is described here is the method in execution and the defined scope, not a final delivered result.
Business-critical analytical dashboards needed to move from Tableau to Power BI without losing calculation fidelity. The real risk in this kind of migration is not visual: it is the business rule implicit in legacy calculations, undocumented, which the business only recognises when it sees the wrong number.
Legacy calculations mix product, business unit, market, ranking and completeness rules. Two dashboards can look identical and still answer differently if the grain or filter context is wrong — which makes visual comparison insufficient as an acceptance criterion.
- Reverse engineering of Tableau calculations and filters
- Definition of explicit product keys and the business grain
- DAX measures for ranking, completeness and assessment logic
- Diagnostic pages with intermediate counts and exception flags
- Side-by-side validation with business teams ahead of sign-off
Rather than hiding discrepancies behind the final KPI, the validation process exposes the logic stage by stage. That makes business-rule decisions faster and more defensible ahead of rollout — and turns sign-off into verification rather than visual impression.
Have an operational problem to solve?
Describe the process that needs to evolve, or the decision your company needs data to support. We come back with an initial read and the next steps.