Technical Team/Use Cases/2.0/Communicate data beyond what is described in spec

A vendor wants to embed information about a package in its SPDX file that is not representable using standard SPDX fields (and/or classes).

Stakeholders and interests

• SPDX producerThe person or organization that is producing the SPDX and wish to extend it with non-standard information.
• standard SPDX consumerA person, organization or tool that can read and process standard SPDX data but is not aware of the non-standard extensions being used by "SPDX producer".
• extended SPDX consumerA person, organization or tool that can read and process the non-standard extensions used by "SPDX producer" as well as standard SPDX data.

Main scenario

1. SPDX producer analyzes the package for all the standard SPDX data
2. SPDX producer analyzes the package for the list actions they believe are required to comply with the licensing of the package
3. SPDX producer generates an SPDX file which included both the standard SPDX data and the compliance checklist
4. SPDX producer publishes this file on their website as a "SPDX file for package X"
5. An extended SPDX consumer downloads the SPDX file and uses the checklist to ensure they are meeting their licensing obligations

Alternate scenario A

1. SPDX producer analyzes the package for all the standard SPDX data
2. SPDX producer analyzes the package for the list actions they believe are required to comply with the licensing of the package
3. SPDX producer generates an SPDX file which included both the standard SPDX data and the compliance checklist
4. SPDX producer publishes this file on their website as a "SPDX file for package X"
5. A standard SPDX consumer downloads the SPDX file and uses the standard data as input into their compliance processes

Failed scenario

1. Fails if the extensions "break" 'standard consumer/tools' such that they can't even process the standard stuff.