# Form types

The InForm application supports the following types of case report forms:

- Regular form—A CRF that you use to collect data that is specific to the visit in which the form occurs.
- Common form—A CRF containing data that is cumulative from visit to visit.

  Each time the form occurs in a visit, it displays the data that was accumulated from all previous visits, and you can add to the data in the current visit.

  Examples of forms that are often implemented as common forms are Concomitant Medication and Adverse Event forms.

- Repeating form—A CRF that can have multiple instances within a visit.

  A regular or common form can be a repeating form.

  Examples of forms that are often implemented as repeating forms are Vital Signs and Physical Examination forms.

- Associated forms—Instances of a repeating form that are linked to each other.

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