NEW YORK, USA: Now, it's SAP's turn to enter the cloud computing space.

SAP is segmenting its emerging cloud-computing strategy across multiple development platforms, including one code-named "River", which will support lightweight extensions to its on-premises ERP (enterprise resource planning) software.

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The first River-based application, Carbon Impact 5.0, is set to be unveiled next month and will be running on Amazon's Elastic Compute Cloud.

SAP has been working on River for about 18 months, said CTO Vishal Sikka in a recent interview.

River applications are meant to be simple, with only a few dozen screens or so, and are easy to put together and extend, Sikka said. Still, SAP has done "a significant amount of work" on River in areas such as data security and authentication, "which frankly have been missing in many cases in the cloud atmosphere," he said.

River will be opened up to partners "over time," as well as other infrastructure services, he said. "The first [application] is on Amazon, but the platform is designed to run on multiple clouds. Over time it will run on multiple clouds including our own."

SAP went with Amazon at first because it has "a great expertise in this area," Sikka added. "It's a great way for us to deliver the first application, but by no means the only one."

Meanwhile, more complex cloud applications will be based on the platform behind Business ByDesign, SAP's on-demand ERP suite for the midmarket, Sikka said. Business ByDesign is entering a broader release this year.

Although earlier indications were that the platform SAP acquired via its 2006 purchase of e-sourcing vendor Frictionless Commerce would play a central role in its on-demand strategy, that doesn't seem to be the case any longer.

The Frictionless platform provides "a unique set of components for applications similar to sourcing," he said. But "not much" is planned for it outside of e-sourcing, Sikka said.