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Open data

Last Updated:

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

Overview

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

Update History (Last Year)

Documents such as the guidelines

1. Open Data Principles

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

2. Public Data License

The Public Data License (Version 1.0) is an improved version of the Government of Japan Standard Terms of Use (Version 2.0) standard format (the standard format is rewritten and used by each office and ministry) to a reference format (common parts are referred to as they are without being rewritten, and only the original parts of each institution are described). If you are newly applying the terms of use, please use Public Data License instead of Government of Japan Standard Terms of Use.
(Decided by the Chief Information Officer (CIO) Liaison Conference of Cabinet Office and each Ministry on June 25, 2013; revised on July 5, 2024)

3. Local Government Guidebook

We have published a guidebook that can be used as a reference when local governments engage in 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.
* The service was renewed on March 31, 2023 and started as one of the functions of the e-Gov. With the renewal, the name was changed from the open data catalog site.

The data portal service provides the following functions:

  • Full-text search function capable of searching to the contents of open data
  • Visualization of open data through charts and graphs
  • Communication function that enables the sharing of opinions and requests for open data and examples of data utilization

Local governments that have taken open data initiatives

Materials such as a list of local governments that have taken open data initiatives are posted.

Local governments that have newly started open data initiatives must contact Digital Agency using the following communication form. After this communication and the content of the disclosure are confirmed, they will be reflected as local governments that have already started open data initiatives. Or, if the posted information is updated, such as the URL where open data is published, please enter the latest information using this form.

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

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

Quality indicators for Open Data initiatives (Beta) and Training Materials

In order for local governments to understand the current status and issues of their efforts, they have created a flowchart diagnosis and quality evaluation index for their efforts. Please use it when reviewing open data efforts.

Local Government Standard Open Datasets (Official)

This is a compilation of data recommended for release by the government, as well as rules and formats to be followed in the creation of that data.

Open Data 100

To serve as a reference for local communities considering open data initiatives, we have published examples of open data use and activities (such as ongoing events and projects worth mentioning in various parts of Japan) by various businesses and local governments.

Open Data evangelist

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

Local governments that wish to dispatch personnel should apply using the form below. In principle, please apply at least one month in advance because arrangements must be made for dispatch.

Open Data Support Group

Digital Agency has selected "Open Data Support Organizations (OD Supporters)," which mainly support workshops, for the purpose of introducing organizations supporting open data utilization in each area, and listed them.
Local governments that wish to hold workshops and other support are requested to fill out the following support request form (Excel) with the specific contents of the request and contact each OD supporter directly. In principle, please apply at least one month in advance because it takes time to adjust.
The local government which received the support of the OD supporter should report the implementation using the support completion report form below.
Recruitment of additional OD Supporters will begin in April 2023 or later.

Related Information

Contact:

For inquiries about open data, please contact us from the following: