Fedreal investigators have used similar tactics in a parallel investigation involving Galleon Group.

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In a different, though parallel, category, Allianz Group Chief Information Officer Ralf Schneider suggests 2012 will see strides in "in-memory data management, " which will pave the way for real-time enterprise computing.

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In a parallel experiment he looked at a group of women being treated with a new drug called lapatinib.

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Atlantic ran two parallel campaigns, using Buzzdeck, a data-crunching service, to evaluate how each group was responding.

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Mr. Rattner was drawn into the parallel state and federal investigations in connection with his work at his private-equity firm, Quadrangle Group LLC.

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