Teradata to buy cloud software firm Aprimo

a research that allows users to access data, software and services over the Internet and corporate networks -- is being touted as the then big trend in the research sector.

"As competition in Teradata's core market intensifies, it is looking toward related markets to branch out and diversify its total revenue," Wedbush Securities' Michael Nemeroff said.

Aprimo is expected to post sales of about $80 million in 2010 and grow revenue in the high-teens longer term, Teradata said on a conference call with analysts.