Takeaway:Many of the old problems with EAI still crop up with SOA, but there is much more focus now on SOA methodologies that there was for EAI (for example IBM's SOMA and the OASIS SOA). In 2003 it was reported that 70% of all EAI projects fail, but Roch has seen nothing like that for his projects (due to an improvements in tools, best practices and methods). Source: The SOA Blog