Each of these tools will produce a final assessment that will of course highlight that the best way to adopt a Service Orientated Architecture is to use the respective firms middleware technology stack. But these assessments are useful nonetheless in that the final reports produced by the tools give a high level roadmap of the steps required to make the transition.
- HP SOA Readiness Assessment
- IBM SOA Readiness Assessment
- Redhat JBoss SOA Readiness Assessment
- Oracle SOA Readiness Assessment
Please let me know via the comments if there are other online SOA Assessment tools that should be mentioned.