Target Chart Options

Figure 59. Quick Tour of a Target Chart


A target chart is essentially a histogram that represents time along the X axis and the specific target units along the Y axis. Each bar represents one period, however the first bar on the extreme left of every target chart is representative of "initial conditions" in the model (ie. the original dataset) and is referred to as Period 0. No target value or weight can be set for this period.

When the mouse is moved from bar to bar in the histogram the Period is indicated in the upper right corner (P:0), as well as the exact target values of maximums(blue), minimums(red) and current conditions(grey) in colour coded boxes along the bottom of the chart. The current conditions of each period are represented by the black line which appears in each bar.

Other options available from within each chart include: activating the target, applying minimum and maximum levels, adjusting target levels or weights, adjusting values across the entire time horizon or individual time periods, changing views and accessing target information in a table format. Each of these options is discussed in further detail below.

[Important]Important

You cannot set targets for period zero. This period represents the initial conditions prior to management actions occurring in the first planning period.

[Tip]Tip

Patchworks is a dynamic realtime tradeoff model. You can see the effects of objectives and weights by making changes as the scheduler is running. Try experimenting with high target values to see how one goal will compete against another. You can set the weight values to influence the competition.

[Tip]Tip

After making a set of adjustments it is easy to restore all of the targets to a known condition by restoring part of a saved scenario. See Working with scenarios for details. PIN files usually load a set of saved target values in order to initialize the model with a default set of management targets.