For the past year, Starwood -- which also operates W Hotels along with the Le Meredian, St. Regis and Four Points chains -- has been slowly offloading its rates and availability system from an aging mainframe to a distributed set of applications running on Linux servers, said Song Park, director of pricing and availability technologies at Starwood's White Plains, N.Y. headquarters.

Embedded in 10 of those applications are copies of the ObjectStore Enterprise real-time database from Bedford, Mass.-based Progress. While those applications still exchange data in real-time with a central Oracle 10g database, they can run faster queries with the embedded ObjectStore database.

"Our throughput [with Oracle] used to be hundreds of transactions per minute," Park said." Now, it's hundreds per second. And the way it can scale -- it doesn't even compare."

Park chose ObjectStore over caching solutions such as Coherence from Tangosol Inc. "With caching technologies, you have to pop things into memory and then take it back out," he said. "ObjectStore is more integrated into your application. You don't have to worry about the vendor's supplied container. You build your own container. Modeling and development is more seamless."

The increased speed will allow Starwood in the future to do more complicated yield management -- industry-speak for how airlines and hotels adjust room prices in real-time as supply and demand fluctuates. And that helps maximize revenue.