A selection of public health policies compiled from publicly available documents accessible on the internet were classified using the top-level classes of the public health classification. An example public health policy is detailed in Figure 9 . As previously, in Figure 9 , the symbol denotes classes and subclasses, while the symbol denotes 'instances' or individual cases, for example, a particular public health policy. Figure 9 shows detail on the Australian Government Draft National Injury Prevention Plan (NPHP 2004) and the health issues it addresses (external causes of injury, safe home environment, and so on). The plan is assigned to the function subclass 'Prevent occurrence of disease, disability, and injury'. Capture of the URL for the published policy allows rapid access to the policy through the internet. Details of the jurisdictions and/or portfolios that have endorsed the plan can be captured in additional slots.