Insights · Case studies · CSC
Workday was replaced in more than 15 countries on the go-live date CSC had committed to, and pay data was reconciled against the old system before sign-off.
CSC has provided corporate, legal and tax services since 1899. It needed its entire workforce moved from Workday to Oracle HCM Cloud without a slip in schedule, because a delay meant paying for two HR systems at once.
About 5,200 worker records had to move, spread over six areas of HR data.
More than 15 countries and several legal entities were involved. Each had its own time plans and absence rules.
Pay and compensation had to agree with Workday for every single worker before sign-off.
The whole job had to be finished in a matter of weeks.
If the date slipped, CSC would be running and paying for two HR systems at the same time. If compensation records did not match, the first payroll on Oracle was at risk.
Rite ran the complete migration three times. Each run used the full data set, so by the third run both teams had already watched the whole thing work.
All workers were loaded into Oracle HCM. This showed where the real errors were.
Errors from the first run were fixed and the totals were checked against Workday.
The third run was the cutover itself. Every record was loaded, validated and reconciled before sign-off.
Its Workday extraction and Oracle HCM mapping were already built, which is why three full runs fit into eight weeks.
CSC avoided the cost of running two HR systems side by side, and hiring carried on through the move.
worker records matched back to Workday. Compensation was reconciled before go-live, so there was no clean-up afterwards.
from kickoff to go‑live sign‑off, on the date CSC had committed to. That avoided a period of running two HR systems in parallel.
additional countries set up, so all of them now run on the same HR platform.
open job requisitions moved across. Hiring carried on without a break.
less migration effort than doing the same work by hand (approximate).
