OSS License Open Data

NOTE: This is in draft status. The schema and contents are subject to change.

Open data of logically decomposed OSS licenses.

Description

We publish the logically decomposed OSS licenses as open data in order to make it easy for people to understand OSS licenses. We believe it contributes to development of OSS.

Each license is decomposed into vocabularies for actions, conditions, and notices. Conditions construct logic tree with AND node, OR node, and LEAF node. This is the reason we call this data as "logically decomposed" OSS licenses.

Data format

The data is distributed in an exchange format using JSON as following files:

• licenses.json - Logically decomposed OSS Licenses which consist of actions, conditions, and notices.
• actions.json - Vocabularies for actions.
• conditions.json - Vocabularies for conditions.
• notices.json - Vocabularies for notices.

common attributes

Metadata:

attribute	description
data	Top of each element
schemaVersion	Version of schema. This documentation is for 0.1
uri	URI to identify the data
baseUri	Base for relative URI in the "ref" attribute
id	ID of the data. It shoud correspond to uri

Structure of language specific attributes:

"(attribute name)": [
  {
    "language": "(language subtag *1)"
    "text": "(attribute value)"
  }
]

(*1) e.g. "en", "ja". see RFC5646

licenses.json

Structure:

data
  (metadata)
  spdx
  summary
  description
  permissions
    summary
    description
    actions
    conditionHead
  notices
  content

attribute	description
name	Name of the license
spdx	SPDX identifier (optional)
summary	Summary of the license (language specific)
description	Description of the license (language specific)
content	License text

Permissions sub structure:

attribute	description
permissions	List of actions and conditions. The conditions must be fulfilled when the action is taken
summary	Summary of the permission (language specific)
description	Description of the permission (language specific)

Actions sub structure:

attribute	description
actions	List of references to actions
ref	Reference to an action

Logic tree sub structure:

attribute	description
conditionHead	Reference to head of logic tree of conditions
type	Type of the logic tree node. The value is one of "AND", "OR", "LEAF"
children	Children of "AND" or "OR" node
ref	Reference to a condition for "LEAF" node

Notices sub structure:

attribute	description
notices	List of references to notices
ref	Reference to a notice

actions.json

Structure:

data
  (metadata)
  name
  description

attribute	description
name	Name of the action (language specific)
description	Description of the action (language specific)

conditions.json

Structure:

data
  (metadata)
  conditionType
  name
  description

attribute	description
conditionType	Type of the condition. The value is one of following: "OBLIGATION" - must be fulfilled when actions are taken "RESTRICTION" - must be fulfilled after actions are taken "REQUISITE" - must be fulfilled before actions are taken
name	Name of the condition (language specific)
description	Description of the condition (language specific)

notices.json

Structure:

data
  (metadata)
  content
  description

attribute	description
content	Content of the notice (language specific)
description	Description of the notice (language specific)

License

The open data is licensed under Community Data License Agreement Permissive 1.0. The data is provided on an "AS IS" bases without any warranties. See LICENSE.pdf for details.

SPDX-License-Identifier: CDLA-Permissive-1.0