John Wookey, who had been heading Oracle’s Project Fusion integration project, has left the company.
He has been replaced by Thomas Kurian.
ZDNet originally reported the departure, citing an internal Oracle email sent by CEO Larry Ellison, and the news has been confirmed by other media including the Wall Street Journal.
Project Fusion involves bringing together functionality from Oracle’s acquisitions of the past few years, including PeopleSoft and Siebel Systems, and Oracle’s own E-Business suite.
The first Fusion applications are due to be released next year, but Wookey’s departure has led to speculation there may be a delay in that release.
Wookey is understood to be staying on at Oracle to oversee the transition to Kurian's control before leaving.