Digitec Galaxus AG, operator of the leading Swiss online shop, was about to begin initial operation of a comprehensive ERP system developed in-house. All the core processes were to be switched during regular operation into the new application logic, and all revenues were to be transferred to a new company. It was essential to complete the migration before the approaching Christmas season, otherwise thecommissioning would have had to be postponed. Digitec Galaxus AG therefore needed to know if it was possible to accomplish the migration within the allotted time and without a negative impact on their customers. Zühlke evaluated the feasibility of the business-critical project and identified the risks.