Target charts provide a visualization of the contents of an account. There is usually a one-to-one correspondence between accounts and targets such that there is a target chart that corresponds to every account defined in the model. Modelling objectives are applied to accounts using target charts. Each account you define provides an opportunity to set a target objective in Patchworks. For example, if you have defined a managed conifer growing stock account as a summary of all conifer growing stock in the managed area, you can set a minimum volume target for it in a target chart. Targets provide an indicator of performance; how you are doing in achieving your objectives. Each target chart displays one bar per planning period (see Figure 23, “Target chart for conifer growing stock”). If targets are activated, then they participate in the objective function and help to control the simulation. Values can be set on targets such as minimums, maximums and weights.

Figure 23. Target chart for conifer growing stock

The target chart for conifer growing stock showing a minimum volume target of 15 million m3 set per period.

In the above figure, the red bars represent a minimum objective of 15 million m3 per period in all planning periods. The actual amount of growing stock in the simulation is represented by the horizontal black lines for each period. Targets are always expressed by period. Feature targets describe conditions in the final year of the planning period. Product targets sum all products within the planning period. For more information about target charts and setting modelling objectives, see the section called “Target Charts”.