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Open Data

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

Overview

Under the Basic Act on the Advancement of Utilizing Public and Private Sector Data (Act No. 103 of 2016), the national government and local governments are obligated to engage in open data. It is expected that efforts toward open data will resolve various Issue through the promotion of public participation and public-private cooperation, revitalize the economy, and enhance and efficiency public administration.

Update history (last 6 months)

Documents such as guidelines

1. Basic Guidelines for Open Data

(Decided on May 30, 2017 by the IT Headquarters and the Strategic Council for the Advancement of Public and Private Sector Data Utilization, and revised on July 5, 2024)
It shows the basic matters of open data (definition, significance, rules for disclosure, etc.).

2. Terms of Use of Public Data

The Public Data Terms of Use (Version 1.0) is an improvement from the conventional model method of the Government Standard Terms of Use (Version 2.0) (in which each government agency rewrites the model) to a reference method (in which common parts are referred to as they are without being rewritten, and only the unique parts of each agency are described). If you newly apply the Terms of Use, please use the Public Data Terms of Use instead of the Government Standard Terms of Use.
(Decided by the Liaison Conference of Chief Information Officers (CIO) of the Cabinet Office and each Ministry on June 25, 2013, and revised on July 5, 2024)

3. local governments Handbook

We have published a guide to help local government work on open data.

Data Portal Service (formerly Open Data Catalog Site)

Data Portal Service is a portal site that allows you to search across open data published by public authorities.
* 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.

  • A full-text search function that can search the contents of open data
  • Visualization open data in charts and graphs
  • Communication function that enables the sharing of opinions and requests for open data and examples of data utilization

Local government with Open Data Initiatives

Materials such as a list of local government where open data efforts have been made are posted.

If local governments has newly started open data initiatives, please be sure to contact Digital Agency using the following contact form. After confirming the content of this contact and disclosure, it will be reflected as open data initiative completed local government. Or, 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 Evaluation Indicators (Beta) and Training Materials for Open Data Initiatives

Flowchart for local government to understand the current status of efforts and Issue We have created a diagnostic and quality evaluation indicator for efforts. Please use it to review your open data efforts.

Local government Standard Open Dataset (Official Version)

It summarizes the data that the government recommends to be disclosed and the rules and formats that should be followed when creating the data.

Open Data 100

In order to serve as a reference for people in area who are considering open data initiatives, we publish examples of open data utilization by various business operators and local governments, as well as activities (such as noteworthy ongoing events and projects in various parts of Japan).

Open Data Evangelist

Digital Agency dispatches experts who have a deep knowledge of open data as "Open Data Evangelists" to seminars, training sessions, etc. hosted by local government.

If you wish to be dispatched to a local government, please apply using the form below. Since dispatch requires adjustment, in principle, it is requested that you apply at least one month in advance.

Open Data Support Organization

In Digital Agency, for the purpose of introducing open data utilization support organizations in each area, we have selected and posted a list of "Open Data Support Organizations (OD Supporters)" that mainly support workshops.
If you are a local government that would like to receive support for holding workshops, please fill out the specific content of the support request form (Excel) below and contact each OD Supporter directly. Since it takes time to make adjustments, in principle, please apply at least one month in advance.
If local government has received support from OD Supporters, please report the implementation using the following support completion report form after the implementation.
Recruitment of additional OD Supporters will begin no earlier than April 2023.

Related Information

Contact information

For inquiries about Open Data, please contact us below.