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A CRF includes the following subjectsobjects:
- CRF Version:
- Each CRF must have at least one version.
- Other versions are usually created when users what to update a CRF in use or add options into a CRF.
- Children: Section
- Section:
- Mainly used for the display purpose of splitting a CRF into multiple pages when viewing a CRF
- Children: Group
- Group:
- Used to group items into logical groups for easy data handling and analyis
- Only repeating groups appear upon display of form
- Children: Row, Group
- Row:
- Only for display purpose to group items into a row upon display
- Children: Item
- Item:
- Smallest unit of a CRF representing a field within the data form.
Not all subjects objects in a CRF Builder is used to store data. Some subjects objects such as section or row are only used for display purposes.
Example: The following diagram shows the relationship between subjects objects of CRF builder and subjects objects in ODM-CDISC data standard.
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