The Open Data Inventory (ODIN) by Open Data Watch operationalizes the openness definition and is an assessment that measures the coverage and openness of official statistics. Countries can use the tool to place benchmarks on the progress of their open data initiatives.
ODIN is designed to measure the openness of official statistics produced by the national statistical systems but other indexes like the Open Data Barometer, and Global Open Data Index include “national statistics” among the types of public information they evaluate, but they are more concerned with non-statistical datasets, such as government budgets, voting records, transportation timetables, weather information, and maps.
The State of Open Data Report contains an overview of the different open data communities and themes, including a chapter on official statistics, and provides a general overview of the state of the field.
Guidance for NSOs is provided by the United Nations Fundamental Principles of Official Statistics, a set of ten principles that set out the professional and scientific standards for NSOs. The first principle, which arguably incorporates the remaining nine, embraces the core principle of open data by outlining citizens’ right to public information.
The Cape Town Global Action Plan for Sustainable Development Data, adopted at the first United Nations World Data Forum in 2017, includes open data among its key actions for innovation and modernization of national statistical systems.