dharmendra

I am working in different projects in the filed of power, utilities, steel, etc.
In each project some information or documents are predecessors for preparing other documents. For example P&IDs are predecessor for preparing piping plans or architectural works of buildings can be started by receiving the required area data from I&C or Electrical department for their control room or electrical rooms. In order to enable each department to start its own portion, other departments should issue some information or documents to that department with some internal issue such that the whole works can be done in time. My question is about 1) proper time for such internal issues within a project. I want to have some figures; for example after elapsing one third of the time required for preparing final P&ID it should be internal issued to other departments?!! 2) the sequence of preparing documents in a project?

I hope above explanations works