Start Level 1 Node: Production Process Model, Production Data Structure and iPPEProduction Process Model, Production Data Structure and iPPEEnd Level 1 Node: Production Process Model, Production Data Structure and iPPE
   Start Level 2 Node: Production Process ModelProduction Process ModelEnd Level 2 Node: Production Process Model
   Start Level 2 Node: Production Data Structure (PDS)Production Data Structure (PDS)End Level 2 Node: Production Data Structure (PDS)
   Start Level 2 Node: Integrated Product and Process Engineering (iPPE)Integrated Product and Process Engineering (iPPE)End Level 2 Node: Integrated Product and Process Engineering (iPPE)