The move will see the high-street bank rolling out the system across its main Web site, with a view to extending it across the group's other sites, including Cahoot, First National and Scottish Mutual, should it prove to be successful.
Abbey National's operations development manager for retail e-commerce, Bill Wilson-Slight, said the Web site was large and expensive to maintain but implementing this system would enable the bank to make changes faster and more cheaply.
Implementation, which is due to be completed by the end of this year, is still in an early phase, with the company working on object classification and defining workflow changes, he said.
Last year, Abbey National signed a deal for another content management system provided by US software supplier Documentum for its Internet banking division Cahoot. It was one of six systems evaluated for the current contract. Cahoot would have the option to move to Obtree if the implementation is successful, said Wilson-Slight.