Internet Replatform - go-live activities

We're assisting with replatforming the websites of a $2B retailer. ProfiTech was responsible for the BI systems migration which run on Cognos and Oracle. After many months of development and testing we got the green light on Sunday to begin cut-over activities. Their BI systems now are fed data from a different system, but all downstream reporting systems remain unchanged, making the cut-over seamless to the end reporting users.