Developing schedules of detailed engineering phase for oil & gas

Hi everyone,

I would like to ask the experienced guys developing plans and schedules for oil & gas plants about a brief description of each of the disciplines involved (process, piping, mechanical, civil, eletrical, instrumentation & controls)

1. What are the major deliverables produced on each discipline

2. Most important relationships among these deliverables (which comes first, which follows what, etc.)

3. The interface with procurement and construction

4. Where to find further information (websites, PDF documents, etc.) to learn more a little bit of each discipline

Thank you in advance.