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Open data

Decision documents and various materials related to open data are posted.

Overview

Under Basic Act on the Advancement of Public and Private Sector Data Utilization (Law No. 103 of 2016), the national and local governments are obliged to work on open data, which is expected to solve various problems through the promotion of public participation and public-private cooperation, revitalize the economy, and make administration more sophisticated and efficient.

Update History (last 6 months)

  • December 26, 2024 Updated the Open Data for Local Governments
  • November 22, 2024 Posted English translation (reference translation) of Public Data License (version 1.0)
  • Updated the list of Open Data evangelist in on October 25, 2024
  • Published on July 5, 2024: Commentary on Public Data License (Edition 1.0) and Public Data License (Edition 1.0), which revised Government of Japan Standard Terms of Use, Basic Guidelines for Open Data
  • Published on July 5, 2024: Commentary on Public Data License (Edition 1.0) and Public Data License (Edition 1.0), which revised Government of Japan Standard Terms of Use, (Edition 2.0)
  • June 12, 2024 Published a feasibility study report on a tool to support open data initiatives by local governments in

Documents such as guidelines

1. Basic Guidelines for Open Data

(Approved by the IT Headquarters and the Strategic Meeting for the Advancement of Public and Private Sector Data Utilization on May 30, 2017, and revised on July 5, 2024)
Basic matters of open data (definition, significance, rules for disclosure, etc.) are shown.

2. Public Data License

Public Data License (Version 1.0) is an improvement from the conventional model method of Government of Japan Standard Terms of Use (Version 2.0) (each ministry rewrites the model) to the reference method (the common parts are referred to as they are without rewriting, and only the unique parts of each organization are described). If you newly apply the terms of use, please use Public Data License instead of Government of Japan Standard Terms of Use.
(Decided by the Liaison Meeting of Chief Information Officers (CIO) of the Cabinet Office and each Ministry on June 25, 2013, and revised on July 5, 2024)

3. Local Government Manual

We publish a manual that can be used as a reference when local governments work on open data.

Data Portal Service (formerly Open Data Catalog Site)

The Data Portal Service is a portal site that allows cross-sectional searches of open data published by administrative agencies.
* It was renewed on March 31, 2023, and the service started as one of the functions of e-Gov. Along with the renewal, the name was changed from Open Data Catalog Site.

The data portal service provides the following functions.

  • Full-text search function for open data content
  • Visualization of open data in charts and graphs
  • Communication function that enables the sharing of opinions and requests on open data and examples of data utilization

Local governments with open data initiatives

Materials such as a list of local governments that have worked on open data are posted.

For local governments that have newly started open data initiatives, please be sure to contact Digital Agency using the following communication form. After confirming this communication and the contents of the disclosure, we will reflect them as local governments that have started open data initiatives. Alternatively, if there is an update to the posted information such as the URL where open data is disclosed, please enter the latest information using this form.

List of Questionnaire Results and Responses on Open Data Initiatives for Local Governments

A list of the results and responses to the "Questionnaire on Open Data Initiatives for Local Governments" is available.

Quality indicators for Open Data initiatives (beta version) and training materials

We have created a flow chart for local governments to understand the current status of efforts and issues, and a quality evaluation index for efforts. Please use it for reviewing open data efforts.

Municipal Standard Open Data Set (Official Version)

This is a compilation of data recommended by the government for public disclosure and the rules and formats that should be followed when creating that data.

Open Data 100

Examples of the use of open data by various businesses and local governments, as well as activities (such as noteworthy ongoing events and projects in various parts of Japan), are made available to local residents who are considering open data initiatives.

Open Data evangelist

In Digital Agency, experts with a deep knowledge of open data are dispatched as "Open Data evangelist" to seminars and training sessions hosted by local governments.

If you are a local government and would like to be dispatched, please apply using the form below. Since dispatching requires adjustments, in principle, please apply at least one month in advance.

Open Data Support Group

Digital Agency has selected and posted a list of "Open Data Support Organizations (OD Supporters)" that mainly support the holding of workshops with the aim of introducing open data utilization support organizations in each area.
For municipalities that wish to hold workshops and other support, please fill out the following support request form (Excel) with specific details and contact each OD supporter directly. As it takes time to make adjustments, in principle, please apply at least one month in advance.
Local governments that have received support from OD Supporters should report on the completion of support using the following form after implementation.
The recruitment of additional OD supporters is scheduled to start after April 2023.

Related Information

Inquiries

For inquiries about Open Data, please contact: