NEW YORK -- IBM Corp. said Friday it will purchase Rational Software Corp., a maker of development tools, for $2.1 billion in cash -- its biggest software acquisition since purchasing Lotus in 1995.

IBM Corp. has agreed to acquire Rational Software Corp. for US$2.1 billion, the companies said Friday. Rational, which is located in Cupertino, California, provides software tools and services for ...

IBM said last week that the move demonstrates its continued support to leverage open-source technologies as the foundation for its portfolio of developer tools. News of IBM Rational's plan to support ...

IBM's Rational division this week gave attendees at its annual user conference in Orlando, Fla. a peek at three new products focused on the notion of "software investment management," as well as ...

Sabbah is a 30-year veteran of the company and an architect of its open-source policy, as well as overseer of its mainstream WebSphere middleware. While acting as head of development for WebSphere, ...

After acquiring Rational Software for $2.1 billion in December, IBM has offered some insight into its plans to wrap Rational’s development tools into the On Demand initiative. Coming down the pike is ...

My guesses for what would constitute the bulk of the show news this week at IBM's 2008 Rational Software Developer Conference seem to have been mostly accurate. It’s teams, it’s collaboration and it’s ...

IBM will pay $2.1 billion in cash to acquire modeling tools company Rational Software, in a bid to win over more application developers. Rational's business operations will be combined with IBM's ...

IBM announced the completion of its $2.1 billion acquisition of Rational Software Corp. Friday, making Rational an IBM brand. The deal, made official at the close of the market Thursday and announced ...

IBM on Wednesday will announce integrations between its Rational and Tivoli product lines that enable users to automate processes across development, testing, and operations teams. The service ...

IBM’s Rational Software division this week will announce a rapid application development (RAD) tool that’s designed to reduce the complexity of building enterprise-class Java applications. Rational ...