Administration Guide › Aggregation and Correlation Engine 2 (ACE2) › ACE2 Features › Calculation Policy

Calculation Policy

A calculation policy is attached to each metric and determines the response time of the metrics to events it receives. The scheduling of missions is based on the calculation policy. The system comes with two predefined calculation policies:

• System default calculation policies
• Other calculation policies that you add

You can add additional policies as needed. You can assign any policy to any metric. You can access this dialog through the administration menu.

Each metric has a specific calculation policy assigned to it. You change the calculation policy assignment at any time. This change is made through the instance management page.

Each calculation policy holds a pair of minimum and maximum number of minutes for each time unit. You can access this dialog at Administration, ACE Management, Calculation Policies. Click on the Add New button.

• Minimum minutes - The number of minutes to wait before starting calculations after the events start arriving. This time frame allows multiple events to arrive before the calculation starts and prevents false starts and unnecessary recalculations
• Maximum minutes - The maximum time a metric waits without calculating when no events arrive