Creating a Rule

You can manage all rules that define relationships between metrics or between metrics and values. Rules are stored in directories.

Prerequisites

You have created a home directory. To create a home directory, log in to the DataArts Studio console, click Access under a specific instance, choose More > DataArts Quality on the Workspaces tab page, choose Metric Monitoring > Rule Management from the left navigation bar on the page displayed, and create a directory. Before creating a rule for a metric, select a directory to store the rule. For details, see Figure 1.

Figure 1 Directory that stores the rule to create

**Table 1** Buttons in the navigation bar
No.	Description
1	Create Directory
2	Refresh Directory
3	Right-click All to create, rename, or delete a directory.

Creating a Rule

On the DataArts Studio console, locate a workspace and click DataArts Quality.

Choose Metric Monitoring > Rule Management from the left navigation bar.

Click Create. In the dialog box displayed, set the parameters based on Table 2.

**Table 2** Rule parameters
Parameter	Description
Rule Name	The name of a rule, which contains 1 to 64 characters and consists of only letters, numbers, and underscores (_).
Description	Information to better identify a rule. It cannot exceed 4096 characters.
Directory	The directory that stores the rule. You can select a created directory. Figure 1 shows the directory.
Define Relationship	A relationship is a logical expression between a metric and a value or between metrics. The relationship can contain arithmetic operations. Metrics are abbreviated to lowercase letters a to z and are added in the alphabetic order of metric abbreviations. NOTE: Only one valid logical expression and the simple four arithmetic operations are supported.