The created element represents the date the definition was created and the set of contributors that created the definition. The submitted element represents the date the definition was submitted to the OVAL Repository and the set of contributors that submitted the definition. The modified element represents the date the definition was modified, a brief comment about the change that was made, and the set of contributors that modified the definition. The status_change element records the data and time that a definition's satatus is chagned. This element is managed by the OVAL Repository.