IBM is buying customer data integration software maker DWL for an undisclosed sum. The purchase will add to IBM's information management product line.

Ten-year-old DWL is a privately held, venture capital-funded company. It produces Java-based software that pulls together information from disparate systems, such as logistics and billling applications, to provide a unified customer record. It is aimed mostly at the financial services industry but IBM said it plans to add resources to expand it to telecommunication and retail. DWL customers include Staples, MetLife and SunTrust Banks.

IBM already had a deep technology and consulting services partnership with DWL. It will add DWL to its Information Management group.

IBM's integration plans for DWL will be similar to the path it followed last year with its purchase of Trigo Technologies. Its software, Product Center, was rebranded WebSphere Product Center and added it to IBM's middleware line as an independent module.

IBM expects the DWL deal to close later in the year. DWL has around 150 employees, a majority of whom IBM plans to retain.