About rules

The two classes of rules are:

• Data-entry rule—A rule that checks whether data is valid or that sets the value of an item based on a calculation. You can create a data-entry rule for study designs, study elements, study events, forms, and items.
• Workflow rules and global conditions
  • Workflow rule—A logical construct that tests data values to determine the study element, study event, or form to which a subject progresses next.

    You can create a workflow rule for a study element, study event, or form only.

  • Global condition—A logical construct that, when applied to a study object, determines whether the study object will appear for a particular subject.