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Figure 31.4.
A matrix diagram.

Matrix items for the rows and columns are in a listbox of choices, and they are initially the same in the New Matrix dialog box. After you choose something in either listbox, the other listbox elements show only those items that can be reported against. The items shown in the two listboxes follow:

Assumptions	Key performance indicators
Attributes	Locations
Business functions	Modules
Business units	Nodes
Columns	Objectives
Critical success factors	Problems
Entities	Relations

When both row and column options are chosen , a Settings dialog box appears. This is where you choose the row and column display items, along with any filters and ordering conditions. Next, you choose intersection properties of the row and column. After the settings and filters are completed, the matrix diagram is generated. After the matrix diagram is created, you can drill down on row or column items to bring up the property sheet, or you can drill down on the matrix result to bring up its property sheet. Changes you make to objects on the property sheet are made automatically to the Repository. You can add to and delete from the columns and rows of the matrix, and you can show three views based on the preferences set to help you view the result set. You also can print the matrix report; in some cases, however, the matrix lines do not print.

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The Repository Object Navigator

As in the previous versions of Oracle CASE Dictionary and its main menu, Designer/2000 provides a tool for viewing any portion of or the entire Repository and launching any of the supplied utilities and design tools. Figure 31.5 shows this tool, which is called the Repository Object Navigator (RON).

Figure 31.5.
The Repository Object
Navigator.

Startup

First, you create a new application for the Repository by choosing File New or by opening an existing application by choosing File Open.

From the initial startup of the Repository Object Navigator, you can choose from several options in the Filter dialog box. This dialog box is displayed by default, but you can suppress this display by editing the RON preferences.

The filters shown turn on and off the viewing of specified object types. You can use these filters to minimize what is displayed, so you'll minimize many of the nodes to show only those applicable to the phase you are in. These filters are displayed as checkboxes:

• Show User Extensions: Displays any user -defined Repository extensions, as defined in the RAU
• Show BPR Objects: Displays objects defined in the Process Modeling stage
• Show Analysis Objects: Displays objects defined in the System Modeling stage
• Show Design/Implementation Objects: Displays objects defined in the System Design stage
• Show "Owned By" Associations Only: Displays only ownership associations

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Creating New Applications

You are placed at the top of the hierarchy tree in the RON and prompted for the new application's name. The new application name can contain up to 14 characters . The name should be meaningful and should cover the entire scope of the application. At this point, the initial application properties should be completed on the property sheet for the application.

Opening Existing Applications

The Open Application dialog box appears, as shown in Figure 31.6; it lists all applications available in the Repository, application versions, and related user security assigned for the application. Users also can specify read-only mode if they plan to make no changes.

Figure 31.6.
The Open Application
dialog box.

NOTE

If you open multiple applications, each will have its own application window available.

Viewing and Preferences

Two child windows initially are visible in the RON main window. The first always is available when an application is open; it is the Application Hierarchy Tree window. The second, the Properties window, is optional. After maximizing the window, you can choose Window Tile Vertically to lengthen the two child windows for optimal viewing. Four colors are used to identify items as normal items, error/mandatory items, modified items, and shared/noneditable items. You can modify these colors in the user preferences. The hierarchy tree shows the object and each object's properties.

Navigating the Hierarchy Tree

The standard look and feel of the Designer/2000 and Developer/2000 products includes a hierarchy tree, as shown in Figure 31.7. You can split the tree into two views by using the split bar located just above the window's vertical scrollbar.

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Figure 31.7.
The RON hierarchy
tree.

You can expand tree items one at a time by clicking the colored plus sign (+) or by selecting the object and choosing Navigator Expand (or Expand All). You can collapse tree branches back by clicking the minus sign (_) or by selecting the object and choosing Navigator Collapse (or Collapse All). The plus sign (+) indicates that additional items exist at a more detailed level. The minus sign (_) indicates that the object has been expanded to the most detailed level.

You can add objects to the various object types by selecting the object type or an object of that type and clicking the plus sign (+) button on the toolbar or by choosing Edit Create. You can delete objects from object types by selecting the object and clicking the X button on the toolbar or choosing Edit Delete.

The Property Sheet

Selecting an object on the tree displays the object's properties in the Properties window (if the Properties window is open). The details about the object are displayed in the Properties window; you can add to or modify these details here. Figure 31.8 shows a property sheet. In this example, a table has many columns, and each column has various properties, such as Name, Short Name, Type Of, and Description.

A field used for editing properties is at the top of the property sheet. If the property selected is a plain edit, you enter the information into this field. If the property is derived from a list of available values, a listbox appears. If the property information is large, an edit box with a button to the right is displayed. You click the button to open an editor. When using the editor, you must save changes in the editor and then in the Repository.

You can open a new property sheet by choosing Window New Property Sheet. This enables you to view two sets of properties at a time. Additionally, a copy-and-paste utility is located at the top of each property sheet; you can use this to copy specific properties or all properties of one object to another.

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