Code B D E Activity Planning Purchasing Excavation Sawing Placement Assembly Infill Outfill Decoration Description Find location: determine resource requirements Requisition of lumber and sand Dig and grade Saw lumber into appropriate sizes Position lumber in correct locations Nail lumber together Put sand in and under the equipment Put dirt around the equipment Put grass all over the garden, landscape, paint Time (in hours) 20 60 100 30 20 10 20 10 30 Immediate Predecessor(s) None Planning Planning Purchasing Sawing. excavation Placement Assembly Assembly Infill, outfill G H a) Draw the network using AOA and AON. b) Identfy the project duration c) Find the slack for the critical activities