SDMX Message Namespace Module The message namespace module contains the common message constructs, including the common header information which is used with all other SDMX-ML namespace modules. MessageType is an abstract type which is used by all of the messages, to allow inheritance of common features. Every message consists of a mandatory header, followed by optional payload (which may occur multiple times), and finally an optional footer section for conveying error, warning, and informational messages. Structure is a message that contains structural metadata. It may contain any of the following; categorisations, category schemes, code lists, concepts (concept schemes), constraints (attachment and content) data flows, hierarchical code lists, metadata flows, metadata structure definitions, organisation schemes, processes, reporting taxonomies, and structure sets. StructureType defines the contents of a structure message. The payload is optional since this message may be returned from a web service with only information in the footer. GenericData is used to convey data in a non data structure specific form. Data sets in this message will be each have a related structure specification in the header, which states the data structure the data conforms to and how the data is organised (i.e. the observation dimension). GenericDataType defines the contents of a generic data message. GenericTimeSeriesData is a special derivation of the generic data message which only allows for time series oriented date (i.e. the observation dimension must be time). Although this is a different message, the content of this message will be exactly the same as a generic data message that specifies time as the observation dimension; therefore no additional processing requirements are necessary. This message is intended to only be used when it is necessary to restrict an exchange to being only time series based data. GenericTimeSeriesDataType defines the structure of the generic time series data message. StructureSpecificData is used to convey data structure specific according to data structure definition. The payload of this message (i.e. the data sets) will be based on XML schemas which are specific to the data structure definition and the orientation (i.e. the observation dimension) of the data. StructureSpecificDataType defines the structure of the structure specific data message. Note that the data set payload type is abstract, and therefore it will have to be assigned a type in an instance. This type must be derived from the base type referenced. This base type defines a general structure which can be followed to allow for generic processing of the data even if the exact details of the data structure specific format are not known. StructureSpecificTimeSeriesData is a special derivation of the structure specific data message which only allows for time series oriented date (i.e. the observation dimension must be time). Although this is a different message, the content of this message will be exactly the same as a structure specific data message that specifies time as the observation dimension; therefore no additional processing requirements are necessary. This message is intended to only be used when it is necessary to restrict an exchange to being only time series based data. StructureSpecificTimeSeriesDataType defines the structure of the structure specific time series data message. GenericMetadata contains reported metadata in a format which supports any metadata structure definition. GenericMetadataType defines the contents of a generic metadata message. StructureSpecificMetadata contains reported metadata in a format which is specific to the metadata structure definitions which define the structure of the metadata being reported. This format allows for validation of the metadata against the intended structure. Note that the each metadata set provided will be based on a metadata structure specific schema. StructureSpecificMetadataType defines the structure of a structure specific metadata message. Note that the metadata set payload type is abstract, and therefore it will have to be assigned a type in an instance. This type must be derived from the base type referenced. This base type defines a general structure which can be followed to allow for generic processing of the data even if the exact details of the data structure specific format are not known. RegistryInterface is used to conduct all interactions with the SDMX Registry Services. This is a type which describes a structure for holding all of the various dedicated registry interface message types. SubmitRegistrationsRequest is sent to the registry by an agency or data/metadata provider to request one or more registrations for a data set or metadata set. The data source to be registered must be accessible to the registry services at an indicated URL, so that it can be processed by those services. SubmitRegistrationsResponse is sent to the agency or data/metadata provider in response to a submit registrations request. It indicates the success or failure of each registration request, and contains any error messages generated by the registration service. QueryRegistrationRequest is used to query the contents of a registry for data sets and metadata sets. It specifies whether the result set should include metadata sets, data sets, or both. The search can be characterized by providing constraints including reference periods, data regions, and data keys. QueryRegistrationResponse is sent as a response to any query of the contents of a registry. The result set contains a set of links to data and/or metadata If the result set is null, or there is some other problem with the query, then appropriate error messages and statuses will be returned. SubmitStructureRequest is used to submit structure definitions to the repository. The structure resources (key families, agencies, concepts and concept schemes, code lists, etc.) to be submitted may be communicated in-line or be supplied in a referenced SDMX-ML Structure messages external to the registry. A response will indicate status and contain any relevant error information. SubmitStructureResponse is returned by the registry when a structure submission request is received. It indicates the status of the submission, and carries any error messages which are generated, if relevant. SubmitSubscriptionsRequest contains one or more requests submitted to the registry to subscribe to registration and change events for specific registry resources. SubmitSubscriptionsResponse is the response to a submit subscriptions request. It contains information which describes the success or failure of each subscription request, providing any error messages in the event of failure. If successful, it returns the registry URN of the subscription, and the subscriber-assigned ID. QuerySubscriptionRequest is used to query the registry for the subscriptions of a given organisation. QuerySubscriptionResponse is sent as a response to a subscription query. If the query is successful, the details of all subscriptions for the requested organisation are sent. NotifyRegistryEvent is sent by the registry services to subscribers, to notify them of specific registration and change events. Basic information about the event, such as the object that triggered it, the time of the event, the action that took place, and the subscription that triggered the notification are always sent. Optionally, the details of the changed object may also be provided. SubmitRegistrationsRequest is sent to the registry by an agency or data/metadata provider to request on or more registrations for a data set or metadata set. The data source to be registered must be accessible to the registry services at an indicated URL, so that it can be processed by those services. SubmitRegistrationsRequestType defines the structure of a registry submit registration requests document. SubmitRegistrationsResponse is sent to the agency or data/metadata provider in response to a registration requests. It indicates the success or failure of each registration request, and contains any error messages generated by the registration service. SubmitRegistrationsResponseType defines the structure of a registry submit registration response document. QueryRegistrationRequest is used to query the contents of a registry for data sets and metadata sets. It specifies whether the result set should include metadata sets, data sets, or both. The search can be characterized by providing constraints including reference periods, data regions, and data keys. QueryRegistrationRequestType defines the structure of a registry query registration request document. QueryRegistrationResponse is sent as a response to any query of the contents of a registry. The result set contains a set of links to data and/or metadata If the result set is null, or there is some other problem with the query, then appropriate error messages and statuses will be returned. SubmitRegistrationRequestType defines the structure of a registry submit registration response document. SubmitStructureRequest is used to submit structure definitions to the repository. The structure resources (key families, agencies, concepts and concept schemes, code lists, etc.) to be submitted may be communicated in-line or be supplied in a referenced SDMX-ML Structure messages external to the registry. A response will indicate status and contain any relevant error information. SubmitStructureRequestType defines the structure of a registry submit structure request document. SubmitStructureResponse is returned by the registry when a structure submission request is received. It indicates the status of the submission, and carries any error messages which are generated, if relevant. SubmitStructureResponseType defines the structure of a registry submit registration response document. SubmitSubscriptionsRequest contains one or more requests submitted to the registry to subscribe to registration and change events for specific registry resources. SubmitSubscriptionsRequestType defines the structure of a registry submit subscription request document. SubmitSubscriptionsResponse is the response to a submit subscriptions request. It contains information which describes the success or failure of each subscription request, providing any error messages in the event of failure. If successful, it returns the registry URN of the subscription, and the subscriber-assigned ID. SubmitSubscriptionsResponseType defines the structure of a registry submit subscription response document. QuerySubscriptionRequest is used to query the registry for the subscriptions of a given organisation. QuerySubscriptionRequestType defines the structure of a registry query subscription request document. QuerySubscriptionResponse is sent as a response to a subscription query. If the query is successful, the details of all subscriptions for the requested organisation are sent. QuerySubscriptionResponseType defines the structure of a registry query subscription response document. NotifyRegistryEvent is sent by the registry services to subscribers, to notify them of specific registration and change events. Basic information about the event, such as the object that triggered it, the time of the event, the action that took place, and the subscription that triggered the notification are always sent. Optionally, the details of the changed object may also be provided. NotifyRegistryEventType defines the structure of a registry notification document. StructureSpecificDataQuery is used to query SDMX compliant databases or web services for structure specific data. DataQueryType defines the structure of a data query message. GenericDataQuery is used to query SDMX compliant databases or web services for generic data. This is actually a specialization of the structured data query, and therfore can be processed in the same manner. DataQueryType defines the structure of a generic data query message. GenericTimeSeriesDataQuery is used to query SDMX compliant databases or web services for time series only generic data. This is actually a specialization of the generic data query, and therfore can be processed in the same manner. This message is intended to only be used when it is necessary to restrict an exchange to being only time series based data. GenericTimeSeriesDataQueryType defines the structure of a time series generic data query message. StructureSpecificTimeSeriesDataQuery is used to query SDMX compliant databases or web services for time series only structure specific data. This is actually a specialization of the structure specific data query, and therfore can be processed in the same manner. This message is intended to only be used when it is necessary to restrict an exchange to being only time series based data. StructureSpecificTimeSeriesDataQueryType defines the structure of a time series generic data query message. GenericMetadataQuery is used to query SDMX compliant databases or web services for generic format reference metadata. StructureSpecificMetadataQuery is used to query SDMX compliant databases or web services for metadata structure specific reference metadata. MetadataQueryType defines the structure of a reference metadata query message. DataSchemaQuery is used to query SDMX compliant databases or web services for data structure specific schemas for the purpose of validating structured data. DataSchemaQueryType defines the structure of a data schema query message. MetadataSchemaQuery is used to query SDMX compliant databases or web services for metadata structure specific schemas for the purpose of validating structured metadata. MetadataSchemaQueryType defines the structure of a metadata schema query message. StructuresQuery is used to query SDMX compliant databases or web services for any structures based on simple maintainable object properties (e.g. all objects maintained by a maintenance agency). StructuresQueryType defines the structure of a structures query message. DataflowQuery is used to query SDMX compliant databases or web services for dataflows. DataflowQueryType defines the structure of a dataflow query message. MetadataflowQuery is used to query SDMX compliant databases or web services for metadata flows. MetadataflowQueryType defines the structure of a metadata flow query message. DataStructureQuery is used to query SDMX compliant databases or web services for data structures definitions. KeyFamilyQueryType defines the structure of a data structure query message. MetadataStructureQuery is used to query SDMX compliant databases or web services for metadata structure definitions. MetadataStructureQueryType defines the structure of a metadata structure query message. CategorySchemeQuery is used to query SDMX compliant databases or web services for category schemes. CategorySchemeQueryType defines the structure of a category scheme query message. ConceptSchemeQuery is used to query SDMX compliant databases or web services for concept schemes. ConceptSchemeQueryType defines the structure of a concept scheme query message. CodelistQuery is used to query SDMX compliant databases or web services for codelists. CodelistQueryType defines the structure of a codelist query message. HierarchicalCodelistQuery is used to query SDMX compliant databases or web services for hierarchical codelists. HierarchicalCodelistQueryType defines the structure of a hierarchical codelist query message. OrganisationSchemeQuery is used to query SDMX compliant databases or web services for organisation schemes. OrganisationSchemeQueryType defines the structure of an organisation scheme query message. ReportingTaxonomyQuery is used to query SDMX compliant databases or web services for reporting taxonomies. ReportingTaxonomyQueryType defines the structure of a reporting taxonomy query message. StructureSetQuery is used to query SDMX compliant databases or web services for structure sets. StructureSetQueryType defines the structure of a structure set query message. ProcessQuery is used to query SDMX compliant databases or web services for processes. CategorizationQueryType defines the structure of a categorization query message. CategorisationQuery is used to query SDMX compliant databases or web services for categorisations. CategorisationQueryType defines the structure of a categorisation query message. ProvisionAgreementQuery is used to query SDMX compliant databases or web services for provision agreements. ProvisionAgreementQueryType defines the structure of a provision agreement query message. ConstraintQuery is used to query SDMX compliant databases or web services for constraints. ConstraintQueryType defines the structure of a constraint query message. Error is used to communicate that an error has occurred when responding to a request in an non-registry environment. The content will be a collection of error messages. ErrorType describes the structure of an error response. ErrorMessage contains the error message. It can occur multiple times to communicate message for multiple errors, or to communicate the error message in parallel languages. If both messages for multiple errors and parallel language messages are used, then each error message should be given a code in order to distinguish message for unique errors. BaseHeaderType in an abstract base type that defines the basis for all message headers. Specific message formats will refine this ID identifies an identification for the message, assigned by the sender. Test indicates whether the message is for test purposes or not. Prepared is the date the message was prepared. Sender is information about the party that is transmitting the message. Receiver is information about the party that is the intended recipient of the message. Name provides a name for the transmission. Multiple instances allow for parallel language values. Structure provides a reference to the structure (either explicitly or through a structure usage reference) that describes the format of data or reference metadata. In addition to the structure, it is required to also supply the namespace of the structure specific schema that defines the format of the data/metadata. For cross sectional data, additional information is also required to state which dimension is being used at the observation level. This information will allow the structure specific schema to be generated. For generic format messages, this is used to simply reference the underlying structure. It is not mandatory in these cases and the generic data/metadata sets will require this reference explicitly. DataProvider identifies the provider of the data for a data/reference metadata message. DataSetAction code provides a code for determining whether the enclosed message is an Update or Delete message (not to be used with the UtilityData message). DataSetID provides an identifier for a contained data set. Extracted is a time-stamp from the system rendering the data. ReportingBegin provides the start of the time period covered by the message (in the case of data). ReportingEnd provides the end of the time period covered by the message (in the case of data). EmbargoDate holds a time period before which the data included in this message is not available. Source provides human-readable information about the source of the data. StructureHeaderType defines the structure for structural metadata messages. GenericDataHeaderType defines the header structure for a generic data message. GenericTimeSeriesDataHeaderType defines the header structure for a time series only generic data message. StructureSpecificDataHeaderType defines the header structure for a structure specific data message. StructureSpecificTimeSeriesDataHeaderType defines the header structure for a time series only structure specific data message. GenericMetadataHeaderType defines the header format for generic reference metadata. StructureSpecificMetadataHeaderType defines the header format for metadata structure definition specific reference metadata messages. BasicHeaderType defines the most basic header information used in simple message exchanges. PartyType defines the information which is sent about various parties such as senders and receivers of messages. Name is a human-readable name of the party. Contact provides contact information for the party in regard to the transmission of the message. The id attribute holds the identification of the party. SenderType extends the basic party structure to add an optional time zone declaration. Timezone specifies the time zone of the sender, and if specified can be applied to all un-time zoned time values in the message. In the absence of this, any dates without time zone are implied to be in an indeterminate "local time". ContactType provides defines the contact information about a party. Name contains a human-readable name for the contact. Department is designation of the organisational structure by a linguistic expression, within which the contact person works. Role is the responsibility of the contact person with respect to the object for which this person is the contact. Telephone holds the telephone number for the contact person. Fax holds the fax number for the contact person. X400 holds the X.400 address for the contact person. URI holds an information URL for the contact person. Email holds the email address for the contact person. Provides a union type of xs:date and xs:dateTime for the header fields in the message.