4.4.2.5 The CHART II Navigator

The CHART II navigator allows the user to select and manipulate devices. Devices can also be selected and edited from the map. The CHART II navigator is based on the tree format commonly used in Window applications. This approach reduces the training time associated with familiarizing the operators with new interfaces and provides other useful mechanisms that are described below.

The CHART II Navigator allows an individual user to select basic grouping of devices configured by the administrator or customized groups. Groups can also be created on the fly in response to an operational circumstance such as an incident.

There are two sections to the CHART II Navigator, the left side is the tree and right side is the lists, as illustrated in figure 4-28. The Navigator is highly configurable.

 Figure 4-28. CHART II Navigator

CSC/PBFI Advantage: The CHART II Navigator is an efficient way to select and manipulate devices.

The tree can be configured in terms of geography and hierarchy with the SOC at the root and the TOCís as the next level followed by the Districts. Another way to use the tree is to just select individual device types, such as all VMSís. A particular user, say BOB, may be responsible for one group of devices, e.g. 3 count stations, 5 cameras and two VMSís. These can be configured as Bobís list.

When Bobís list is selected on the tree side of the Navigator, the list of Bobís devices is shown on the right. The same icon as shown on the map accompanies each element in the list. Again, these icons are switched according to the status (red hardware failure etc).

The lists can be configured in the following manner. Everything in the list is an object with a series of properties. Some properties are common among all objects e.g., they all have a name and a location. Properties such as on-line; off-line; and hardware status are common among several device types. VMSís and TARís both have a current message property. Other properties apply to individual object types only, for example, cameras have a snapshot view, only detectors would have speed. The user can select the visible properties by selecting a device, right clicking, selecting "add properties" and then picking from a drop down list that displays the properties of that object. Therefore Bob can configure his list to show only the devices for which he is responsible and the properties that he may need such as operational status and current messages.

Incidents are also shown on the list. When either an operator or an incident detection algorithm detects an incident, it is added to the list in the navigator (in addition to being placed on the map). The incident response process described later in this document then takes over.