Enterprise Architecture Processes link to other IT Management processes, including:
Strategic Planning Process
IT-Enabled Business Change
Capability Management Process
IT Strategy Process
IT Planning Process
IT Performance Management Process
Programme and Project management Process
EA Demand management Process
EA Project Engagement Process
EA Development Process
IT Service Management Process
The relationships between these processes and Enterprise Architecture processes have not been fully developed.
I believe that COBIT is a good basis for looking at them.