# Overview of events

Note: Events (known as Rule Actions in the Central Designer application) are defined in the Central Designer application as part of the study design. You can view and modify the events using the InForm user interface.

An event is a study component that specifies the action to take when a rule fails.

A rule is associated with one or more specific items on a form. When a user submits new or updated data in an item that has a rule attached, and data is present in the additional data items to which the rule refers, the rule runs.

Each rule can be associated with an event that runs based on the outcome of the rule:

- The event can generate a new query or close an answered query.
- The event can run one or more execution plans that:
  - Send e-mail.
  - Send an entry to the Windows log file.

Note: You can view and modify events through the InForm Admin user interface. To perform either task, you must have at least one rule administration right: Deactivate a Rule, Run a Rule, or Modify a Rule.

Note: You create events using the Central Designer application or using MedML and the MedML Installer utility.

Copyright © 2013 Oracle and/or its affiliates. All rights reserved.