Network systems or PERT charts

• Introduction
• Building foundations
• Constructing a brick fence
• Preceding events
• Creating a PERT chart
• Task duration
• Durations on PERT charts
• Path times
• Start dates
• Critical path
• Choosing the critical path

Creating a PERT chart

To create a PERT chart from the preceding events table, let node 1 represent the start of the process. Then task A is the activity on the arrow from node 1. Tasks B, C and D all require that task A has been completed so they will all connect to node 2.

Use the diagram below as your starting point. Node 1 is the start of the process and there are three tasks which can all be done after the first task of ordering is completed. Referring to the table, drag and drop the tasks onto the arrows.