"We stand by the report," Forrester spokesman Phil LeClare said in a brief statement.
Oracle's response to Forrester is a highly unusual move, given that its public relations arm typically offers little comment in response to outside criticisms. This could suggest Oracle is particularly sensitive to how Fusion Applications are viewed in the market.
Overall, Oracle is indeed facing a bit of a dilemma with Fusion, according to one industry observer not connected with the Forrester dispute.
"In a sense, Oracle's Applications Unlimited policy has been too successful," said analyst Frank Scavo, president of IT consulting firm Strativa. "The majority of Oracle's existing customers are so satisfied with their current systems that they do not see a driving need to upgrade to Fusion."
Moreover, "enterprise applications are quite sticky," Scavo said. "It is hard enough for vendors to get customers to upgrade, even when vendors announce end of support for an existing product. Imagine how hard it is to get customers to move when you are promising them continued investment in those existing products."
Chris Kanaracus covers enterprise software and general technology breaking news for The IDG News Service. Chris' email address is Chris_Kanaracus@idg.com