Public Review Announcement for new SDMX-JSON Data Exchange Format

The SDMX Technical Working Group (SDMX-TWG) has produced a new specification for the SDMX-JSON Data Message and submits it for public review.

JSON (JavaScript Object Notation) is a widely used standardised lightweight data-interchange format. The SDMX-JSON Data Message works together with the SDMX RESTful Web Services API. It will assist developers to write software that requests data responses in JSON from SDMX RESTful API and processes data and metadata in the JSON response. The current version of SDMX-JSON Data Message focuses on data visualisation and it supports all features of the SDMX RESTful API for data queries. SDMX RESTful API also supports reference metadata queries and structural metadata queries. These are not yet supported by the SDMX-JSON format.

The proposed format conforms to the JSON standard specification, and it supports the SDMX 2.1 Information Model. SDMX-JSON is streamable from a supporting web service in order to limit the amount of server resources. It should provide fast responses from a web service: few roundtrips, small message sizes and fast parsing. In addition, the format aims to ease the development of client applications with a simple but generic message structure that supports different types of data structures. The SDMX-JSON format may be used in a wide variety of programming languages and application programs. Testing and development of the format has focused on JavaScript applications running in web browsers.

Specification (authoritative): sdmx-json-data-message.pdf

HTML version of the specification, sample messages and informative JSON Schema:

The public review period for this specification extends until 31st October 2014 in order to allow time for implementation. Please send your comments to the SDMX Technical Working Group (SDMX-TWG) Each email message should contain only one comment. Feedback is welcome.

SDMX Expert Group Meeting 2014

The next SDMX Expert Group meeting will be held in Korea from 27 to 30 October 2014.

The meeting will focus on a number of areas, including:

  • exchange of statistical data and metadata actually taking place or being implemented between organisations;
  • work being carried out by the SDMX Technical and Statistical Working Groups;
  • software developments which take advantage of SDMX standards;
  • progress of SDMX standards, guidelines and tools, especially the content-oriented guidelines and the user guide. The role of the SDMX global registry, including use case examples;
  • the role of SDMX in standards-based modernisation of official statistics and related work being carried out by the High-Level Group for the Modernisation of Statistical Production and Services (HLG).

The meeting will also include a capacity building training session for statisticians and IT staff on how to implement an SDMX architecture for reporting and dissemination. The course will have a hands-on approach based on case studies related to the National Accounts and OECD STES (Short-Term Economic Statistics) data collections.

For more details, see

For further information and registration (registration form here) please contact

SDMX Global Registry and global Data Structure Definitions publicly available from April 2014 onwards

The SDMX Global Registry (SGR) is the web based IT application that contains SDMX Data Structure Definitions (DSDs) and other SDMX objects supporting the world-wide implementation of the sixth edition of the Balance of Payments and International Investment Position Manual (BPM6) and the System of National Accounts 2008 (SNA2008).

The SDMX Global Registry will contain more SDMX global DSDs and their related objects as they become available. It is the central reference point and authoritative source for SDMX global DSDs and related objects.

In order to facilitate the implementation of the SDMX standards, the SGR will provide an easy access to the SDMX DSDs and other SDMX artefacts that are used and maintained by national and international organisations.

For more details please see

SDMX-NA/BOP/FDI: new DSDs packages published

The Ownership Group for SDMX implementation in Balance of Payments (BOP), Foreign Direct Investment (FDI) and National Accounts (NA) is pleased to inform you that updated DSDs have been made available.

The new National Accounts release adds support for ECB FAM tables, Eurostat EDP and Financial Crisis tables, support for derived data coding and other minor additions after comments received from data providers and international organisations. Along with the new DSDs, updated Excel templates have been published, which support the new DSD versions.

This release is the first to be available on the SDMX Global Registry.

For more details and downloads please consult the SDMX-NA maintenance page or SDMX-BOP/FDI maintenance page.