Root element for a Use Case descriptor. Facultative Manifest and Fields. Use Case unique identifier. Restriction: 2 chars Use Case version. To be incremented when a breaking change is introduced.Restriction: 1-255 Use Case name. Multilingual.Restriction: At least 1 name must be defined. Use Case description. Multilingual.Restriction: At least 1 description must be defined. Use Case data schema. Used to decode a VDS payload.Restriction: Exactly 1 schema MUST be defined. Defines an extension point where new features (proprietary or not) can be added. Default extensions are: - Policies: Validation policies - Presentation views: Templates used to render VDS content Element used to define a translatable value. Translation is based on the xml:lang provide, ie a 2 letter language code. Sets an element as Nillable. By default, an element is not nillable. Sets constraints on a String field. The field value encoding. If specified, the restrictions are validated against the decoded value. Minimum string length. Optional. Values from 0 to 4,294,967,295. Maximum string length. Optional. Values from 0 to 4,294,967,295. Allowed string pattern. Supports JavaScript RegEx. Optional. If Field A is present, Fild B must be present too Field A or Field B or Field A+B Field A or Field B The field value encoding. If specified, the restrictions are validated against the decoded value. Base entity for a schema field. Field name. Required Field representing a sequence of characters.Restrictions can be applied using StringConStraints element. Value. Optional. Value restrictions. Optional. Value restrictions. Optional. Boolean field restrictions. Booleanfield type. Boolean field restrictions. Date field restrictions. Minimum date allowed. Optional. Date must have the following format: yyyy-MM-dd. Maximum date allowed. Optional. Date must have the following format: yyyy-MM-dd. Date from which to calculate the number of days. Optional. Must be a date format (yyyy-MM-dd) The field value encoding. If specified, the restrictions are validated against the decoded value. Allowed string pattern. Supports JavaScript RegEx. Optional. Allowed string pattern. Supports JavaScript RegEx. Optional. Minimum string length. Optional. Values from 0 to 4,294,967,295. Maximum string length. Optional. Values from 0 to 4,294,967,295. Allowed string pattern. Supports JavaScript RegEx. Optional. If Field A is present, Fild B must be present too Field A or Field B or Field A+B Field A or Field B The field value encoding. If specified, the restrictions are validated against the decoded value. Date type field. Represents the number of days from 2000-01-01, to a maximum of 65535 days (2 bytes). Value. Optional. Date field restrictions. Optional Value restrictions. Optional. List of fields defined in the payload. List of fields defined in the Auxiliary Data. Optional. If not specified, this means there are no auxiliary data. Payload definition Auxiliary Data definition. Optional Base type for an extension. Manifest format version. MUST be 1.