BTM (Business Transaction Management) is starting to appear on the radar screen of many clients and vendors. BTM is based on the ability to trace a transaction path through n-tiers of infrastructure components in order to provide 1) visibility into the transaction, 2) a template that could be used to understand how the infrastructure supports the transaction and 3) a basis to define whether a transaction behavior in normal, that is within the resource usage bracket observed historically or abnormal, signaling a performance or availability issue. Many products have appeared on the market over time to support this transaction tracing or transaction tracking ability. Bristol Technology (now HP), MQ Software Q!Nami (now BMC) supported MQ Series and Websphere MQ. ClearApp (now Oracle) and dynaTrace have this capability built in their SOA-APM monitoring solution, Optier and Correlsense provide visibility into transaction paths. Now we find this capability as one of the requirements for Application Performance Management: IBM ITCAM has looked into this issue from the get go, CA is developing the capability for Wily, HP is working on expanding Bristol, Compuware and Opnet can take advantage of their network analysis solutions to provide this information, Quest Software has added this feature in their APM solution and Precise is also walking the same path . Why?