I recently did an interview with Rich Seeley for SearchSOA/TechTarget on the relationship between eXtreme Transaction Processing (XTP) and SOA, CEP, BPEL and BAM. Here’s an excerpt -

Oracle mixes extreme transaction processing with SOA
SearchSOA.com
Feb. 12, 2008
Rich Seeley

Extreme transaction processing (XTP) is being added to complex event processing (CEP) in service-oriented architecture (SOA) implementations for the financial services industry, explains David Chappell, vice president and chief technologist for SOA at Oracle Corp. Matching XTP technology is acquired from Tangosol Coherence in March 2007 with the Oracle SOA Suite, companies can sort through massive transaction data streams and flag exceptions that may indicate crimes such as credit card fraud. Alerts in the SOA application can go through business process engineering language (BPEL) processors to business activity monitoring (BAM) dashboards. Chappell, who has more than 20 years of experience in the software industry and has written and lectured on SOA, the enterprise service bus (ESB) and message oriented middleware (MOM), calls XTP the “future for financial services infrastructure.” [read more]

Dave