Maintenance Cycle

The Ownership Group agreed on an annual maintenance cycle for changes to the data structures or related artefacts. Updates to any of the DSDs do not necessarily invalidate previous versions. Even if for instance a new version 1.3 will become available, version 1.2 can still be used if the changes introduced in V1.3 do not impact the data exchange template derived from the previous DSDs. This approach ensures long term stability of the published data structures. Only for the rare cases where backwards compatibility cannot be assured, old data structures might be discontinued. This will be communicated with ample lead time through various communication channels by all organisations represented in the Ownership Group.

The detailed description of the maintenance cycle and annual roadmap is published here.

Data Structure Definitions

All structures are stored on the Global SDMX Registry. Access is possible without authentication at The registry interface can be used to visualise the data structures, all related artefact (such as code lists), and to download specific versions of artefacts. It will also host dataflows and constraint artefacts, which describe the subsets of DSDs applicable to Balance of Payments and Foreign Direct Investment.

The package published in January 2019 contains the BOP-DSD v1.11, and the FDI-DSD v1.6, including the following supporting documents:

BOP Package V1.11

  • 01 BOP_DSD_v1.11_matrix (with highlighted changes compared to v1.10)
  • 02 SDMX-MES Release Notes
  • 03 BPM6_DATA_CODIFICATION_v1.11 (with highlighted changes compared to v1.10)
  • 04 BPM6_VALIDATION_RULES_v1.11 (with highlighted changes compared to v1.10)

FDI Package V1.6

  • 01_FDI_DSD_V1.6
  • 02_FDI_IO_ DATA_REQUEST_CODIFICATION(including the data requests of Eurostat, IMF (CDIS) and OECD)
  • 03_FDI DSDV1.6 and IO data request codification
  • 04_FDI_DSD_V1.6_Guidelines

The Data Structure Definitions

The DSDs and related SDMX artefacts are available from the Global SDMX Registry, which is where artefacts for global use are maintained ( The DSDs can be downloaded through the links below (either in SDMX-ML V2.0 or in SDMX-ML V2.1 format). No authentication is required for the registry.

Table 1. BOP and FDI Data Structure Definitions

SDMX Standard

DSD Title

Maintenance Agency

BOP V1.11

2.0 / 2.1

Balance of Payments


FDI V1.6
2.0 / 2.1

Foreign Direct Investment


Change Requests

Please indicate any mistakes you might find or any changes you would like to propose for any of the DSDs or linked artefacts to the following email address: StatisticsQuery@IMF.ORG Please add the full version information of the artefact you wish to be changed (ID and version number) along with a detailed description of the changes and a justification why those changes are needed.

IMF will collect all change requests according to the maintenance cycle and follow up on them accordingly. Once a decision is taken in the Ownership Group, the initiator of the change request will be informed if the change has been accepted and in which version it will be accommodated.

An issue log with all change requests received and their follow up will be published here.