Case Study: TSB Bank learns data migration lessons with iCEDQ

TSB Bank avoids £48.65M in fines with iCEDQ

TSB Bank faced a significant challenge during its migration of 5 million customers to a new core banking platform. The project suffered from multiple data testing failures, including a lack of full-volume testing, confusing ownership of data quality, and an over-reliance on manual processes, which led to a catastrophic system failure post-migration. The vendor, iCEDQ, provided analysis that identified these critical shortcomings in the bank's approach to data validation.

Based on its analysis, iCEDQ outlined a solution centered on implementing automated data testing to prevent such failures. The recommended approach included designating a data testing owner, utilizing 100% of production data for testing, and conducting comprehensive schema and data reconciliation. By applying these lessons from iCEDQ, organizations can avoid the severe financial and reputational damage experienced by TSB, which included £318 million in direct migration costs, £247 million in remediation, and a £48 million regulatory fine.

TSB Bank