2.1. Specification description Terminology

The keywords “MUST”, “MUST NOT”, “SHALL”, “SHALL NOT”, and “MAY” in this document are to be interpreted as described in RFC 2119 .

The key type of information item “element” and “attribute” have to be interpreted as described in XML Information Set.

Crop2ML infoset: An XML information set containing a hierarchy of information items conforming to the rules described in this document. In this specification, such infosets are assumed to be Crop2ML infosets.

Crop2ML model: A discrete-time model represented by a hierarchy of one or more Crop2ML infosets, according to the rules described in this document. In this specification, the topmost Crop2ML infoset in a hierarchy is referred to as the top-level Crop2ML infoset.