The analyst firm highlighted IBM's £96m acquisition of ASP pioneer Corio last month as a sign of growing interest from users in having their applications hosted by a third party.
Forrester said IBM would use Corio's technology to develop and install applications quickly for the SME market.
"With a growing emphasis on rapid implementation and minimal customisation, the enterprise applications outsourcing segment is coming more and more to resemble the ASP approach," Forrester said in a report published last month. "Outsourcers lack rapid implementation and deployment skills. ASPs such as Corio have contributed substantial innovations to the automation of applications delivery.
"These capabilities are increasingly compelling to large outsourcers, not only for the sake of application outsourcing, but for complementary services such as business process outsourcing."
Corio offers hosted application services for Ariba, Epiphany, Oracle, PeopleSoft, SAP and Siebel Systems. IBM has already offered hosted ERP solutions primarily for large corporates, along with a suite of other hosted offerings with various suppliers.