Case Study: Swiss Life achieves a seamless data warehouse migration with BiG EVAL

Swiss Life keeps 100% of key figures aligned with BiG EVAL

Swiss Life, a major European provider of pension and financial solutions, faced the challenge of replacing the entire backend of its data warehouse without users noticing any change to its trusted numbers. To ensure a seamless migration, they employed BiG EVAL to continuously prove the new system delivered identical figures to the old one.

The solution from BiG EVAL involved running automated, continuous comparisons across the legacy Oracle/SAP and new Microsoft platforms, reconciling key figures on every data load. The result was a completely seamless backend swap with zero user impact, as hundreds of checks proved 100% of key figures matched. This provided such value that the deployment became a permanent safety net, evolving into BiG EVAL's longest-running deployment, where it continues to proactively alert IT to data issues before they reach users.

Swiss Life