You can see the five nodes on this slide.
They are the operational locations in the supply chain.
The links are the lines that connect the nodes. You can see that there are both transportation and information links. This network can get much more complex as seen in figure 2.7.
The inputs and outputs are not listed on this slide…
The inputs is the demand, typically the order that specifies which parts or material is requested.
The output is the level of performance expected by the combined logistics operation.