The standard specification for workflow is to prefix wf followed by
its business name.
for example : wf_load_datedim - for workflow
s_load_datedim - for session.
m_load_datedim - for mapping.
Informatica has a methodology that has best practices and standards, "Velocity". These standards can be found on the my informatica portion of the Informatica website.
These things are the best standard things to be followed.