Use terminology from Software Citation Implementation Challenges

[olexandr-konovalov]

Current version lists types of software that can be recorded in CRIS as:

• Open-source software
• Closed source software for which executables can be made available
• Software projects which are unable to make any outputs available, but which can be publicly acknowledged
• Software projects which can not be publicly disclosed

We could achieve more clarity if we can make use of Software Citation Implementation Working Group classification:

• Open source/closed source
• Published/Unpublished
• Version/Concept
  and describe metadata which authors should specify dependently on the combination of these parameters.