Technical Team/Proposals/2010-10-21/artifactOf

Status

Open

Alternative to <a href="http://www.spdx.org/wiki/proposal-2010-10-21-2-file-origin">Proposal 2010-10-21-1: File origin</a>

Issue

The origin of a file is an important fact that is not described by and spdx file.

Proposal

Define a property of File whose value is a DOAP Project. The DOAP Project will contain the project name and homepage URL when they are known. It also might also included more complete information regarding a project, if such information is known. For more information regarding DOAP see <a href="http://en.wikipedia.org/wiki/Description_of_a_Project">Wikipedia</a> and <a href="http://schemapedia.com/schemas/doap">Schemapedia</a>

Multiple instances of this property are allowed because the exact origin of a file may be unclear. If a file was first created in a project A and then copied and modified in project B the file version of the file in project be would be an artifact of both projects A and B.

Additions to spec

5.6 ArtifactOf 5.6.1 Purpose: Identify the project(s) of which this file is a part. 5.6.2 Intent: By providing data regarding the project(s) where this file originated or occurs the reader can better identify the source and use it to do further research if needed. 5.6.3 Cardinality: Optional, 0 or more. 5.6.4 Tag: "ArtifactOf" 5.6.5 RDF: /RDF/SPDXDoc/Describes/File/ArtifactOf 5.6.6 Data Format: doap:Project

<p>The value of this property is a doap:Project. For the RDF/XML format it may be a URI pointing to the project info, or a valid doap:Project resource. For the tag value format project information is limited to name and homepage. These tags are are semantically equivalent to doap:name and doap:homepage properties, respectively.

Either name of homepage may be omitted in the tag value format.

5.6.7 Example: </p>

        ArtifactOf: Project: name: JUnit
                             homepage: http://www.junit.org