World Customs Organization (WCO) Data Model, Single Window Data Harmonization
WCO has developed Single Window Data Harmonization Guidelines to provide Single Window environment developers with tools that can be used in order to achieve data harmonization and to develop internationally standardized data sets including the data element names, definitions, the United Nations Trade Data Element Directory (UNTDED) tag and the formats.
The scope of these Guidelines is to provide Single Window environment developers with tools that can be used in order to achieve data harmonisation. Internationally standardised, in the context of these Guidelines, are the data element names, definitions, the UNTDE tag and the format. Additionally, it will provide Single Window users with tools based on best practices that have been successfully employed by countries where Single Window systems are being developed or have been implemented.