Software AG also has BPM software, in its WebMethods line. It was not immediately clear Monday how that portfolio and IDS Scheer's products will be combined.

Meanwhile, IDS Scheer also has a consulting arm that will help Software AG land SOA and BPM projects, "particularly in SAP environments," Software AG said.

The deal would boost Software AG's position as a large independent player in middleware, which is dominated by IBM and Oracle. Just last week, Oracle announced a wide range of new middleware products, including Oracle SOA Suite 11g.

Software AG said it would discuss its announcement in more detail at a press conference Tuesday.