| Fields  | Description | Required | DDI Documentation |
|---|
| Group |
|
| Holds information about the study | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Group/ |
| Agency |
| The DDI agency identifier for the metadata e.g. uk.alspac, uk.cls.mcs | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Versionable/ |
| Citation |
| Holds reference information about the study | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Group/ |
|
| Title | The official title for the study | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CitationType/ |
|
| AlternateTitle | An alternate title by which the study is known e.g. ALSPAC is also known as Children of the 90s | No | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CitationType/ |
|
| Creator | The current Principal Investigator for the study | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CitationType/ |
|
| Publisher | The current host institution for the study | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CitationType/ |
|
| Copyright | All copyright statements are set to "Copyright [Publisher]. All rights reserved." during the beta phase. | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/CitationType/ |
| Abstract |
| A brief description of the study. A word limit of 300 words has been set. | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Group/ |
| UniverseReference |
| A description of the population of the study | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Group/ |
| FundingInformation |
| Holds information about the current funder/s | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Group/ |
|
| Organization | The organisation providing the funding | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/FundingInformationType/ |
|
| GrantNumber | The grant number of the funding | No | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/composite-types/FundingInformationType/ |
| StudyUnit |
| References the sweeps of the study | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/StudyUnit/ |
| Version |
| Version number | Yes | https://ddialliance.github.io/ddimodel-web/DDI-L-3.2/item-types/Versionable/ |