Alternative to Technical_Team/Proposals/2010-10-21/File_origin
The origin of a file is an important fact that is not described by and spdx file.
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 Wikipedia and Schemapedia
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
5.6.1 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:
The value of this property is a doap:Project. For the RDF/XML format it may be any valid doap:Project resource, including a URI reference. 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 or homepage may be omitted in the tag value format.
ArtifactOf.name: JUnit ArtifactOf.homepage: http://www.junit.org