The best place to start is by installing the ledger board to provide a reference for the rest of the deck.  The second step will involve installing the frost footings.  After these elements are in place you should frame the perimeter of the deck using temporary supports.  Each deck design will naturally present its own order of assembly by which to proceed. 

Many builders take different approaches but good planning will always result in a smoother building process.  If you can highlight or number the individual forms on the plan it may make it easier to select a place to start.  Once pieces of the deck begin to materialize it will give you a physical mass to attach to and square against.  It is usually best to start against the house because the ledger board offers a stationary surface and length to pull measurements from and to attach joists to.  If your deck will change elevations, it makes sense that you should finish one section before starting the next.  Stairs and landings should be the final step in framing a deck.