xml routing again

http://news.zdnet.com/2100-1035_22-6160998.html?part=rss&tag=feed&subj=zdnet

Cisco Systems said Wednesday it will spend $135 million in cash and options to buy Reactivity, a small company that makes equipment to help route XML Internet traffic.

Reactivity's equipment is designed to help companies more easily and quickly deploy XML (Extensible Markup Language), a standard for Web documents. The company, which is based in Redwood City, Calif., was founded in 1998 and has 56 employees. Cisco said it expects the deal to close in its fiscal third quarter, which ends April 28.

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B-tree vs. T-tree

B-tree is multi-way tree, while T-tree is binary balanced tree,
T-tree is designed to reduce the number of pointers and in-memory pointer chasing