Seven (7) steps to SOA
The 7 steps to SOA are:
1. Create/Expose Services
2. Register Services
3. Secure Services
4. Manage (monitor) Services
5. Mediate and Virtualize Services
6. Govern the SOA
7. Integrate Services (ESB)
Read more about it at:
http://www.soa.com/solutions/soa_explained_7_steps/