anchor.diff:  Concept,Keep Concept?,CodeMeta Field,DataCite,OntoSoft,Zenodo,GitHub,Figshare,Software Ontology,code.jsonld,Software Discovery Index,Dublin Core,R Package Description,Debian Package Metadata,Python Distutils (PyPI),Trove Software Map,Perl Module Description (CPAN::Meta),JavaScript package descption (npm),Java (Maven),Octave,Ruby Gem,Use Cases,Use Cases.x,Use Cases.y,ASCL
  -AccessList,n - has a repository specific implementation,accessList,-,-,access_right(public/embargo/private),-,access(private/public),-,-,-,-,-,-,-,-,-,private,-,-,-,3,"3, 10","4,10",
  +AccessList,n - has a repository specific implementation,-,-,-,access_right(public/embargo/private),-,access(private/public),-,-,-,-,-,-,-,-,-,private,-,-,-,3,"3, 10","4,10",
   Agent,y,agent,Creator,hasCreator,creators,owner,,,author,,creator,Authors@R,,,,,,,,,,,,
   AuthorAffiliation,y,affiliation,affilliation,hasCreator,creators.affiliation,-,-,-,affiliation,-,-,-,-,-,-,-,-,-,-,-,"3, 4, 5",-,"4,5,6",
   AuthorEmail,y,email,-,hasCreator,-,-,-,-,email,-,-,Authors@R person(email),-,author_email,-,author:email-address,author.email,-,"DESCRIPTION/Author, DESCRIPTION/Maintainer",email,"3, 4, 5",-,-,email
  
positive.code: AuthorName,y,name,-,hasCreator,-,-,Name,-,name,-,-,"Authors@R person(given, family)",-,-,-,author:contact-name,author.name,-,-,-,"3,4,5",-,"3,4,5,6",
  BuildLink,y,buildInstructions,-,-,r_i.relation,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,"2,3,4",13,"2,8,9,11",
  CILink,y,contIntegration,-,-,r_i.relation,-,-,-,-,-,-,-,-,-,-,-,-,ciManagement,-,-,"2, 3, 9",13,"9,11",
  CitationCount,n - not time invariant,citationCount,-,hasUseStatistics,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,3,"6, 4, 3","4,6,12",
  CodeRepositoryLink,y,codeRepository,-,os:hasCodeLocation os:hasExecutableLocation,r_i.relation,git_url,-,-,codeRepository,Links to code repository,-,URL,HomePage,url,-,resources.repository,repository,repositories,-,homepage,"1, 2, 3, 7, 9, (11), (12)","1, 2, 6, 7, 13","3,4,5,6,9,11",site_list
  ControlledTerm,y,controlledTerm,-,hasSoftwareCategory hasDomainKeywords,communities,-,category,-,-,-,-,-,-,classifiers['Topic'],Topic,CATEGORIES,-,-,DESCRIPTION/Categories,-,"1,3","1, 3","1,3",
  DateCreated,y,dateCreated,Date (dateType = Created),-,-,created_at,-,-,dateCreated,-,created,-,Date,-,-,-,-,-,-,-,3,"3, 4, 11",-,
  
negative.code: RecordDatePublished,? - not in any schema,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,
  RelatedLink,y,relatedLink,-,hasProjectWebSite,related_identifiers,homepage,links,-,codeRepository,-,relation,-,-,-,homepage,resources,homepage,-,DESCRIPTION/Url,homepage,"1-9, 11-12","1, 3",-,
  RelatedPublications,y,relatedPublications,-,hasSimilarSoftware,related_identifiers,-,-,-,-,Associated publications,-,-,-,-,-,-,-,-,-,-,3,"3, 4, 6",3,used_in
  Relationship,y,relationship,"RelatedIdentifier(relationType=isPartOf), RelatedIdentifier(relationType=isVariantFormOf), RelatedIdentifier(relationType=isPreviousVersionOf), RelatedIdentifier(relationType=isNextVersionOf)",hasRelevantDataSources,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,"7,8",
  Role,y,role,,,,,,,,,,,,,,,,,,,,,,
  SoftwareAuthor,n - replaced by agent / role,-,Creator,hasCreator,creators (creators.givennames creators.familyname),owner,Authors(s),software developer organization,author,Author names and affiliations,creator,Authors@R,Maintainer,author,Maintainers,author,author,developers,"DESCRIPTION/Author, DESCRIPTION/Maintainer",author/authors,"3, 4, 5","3, 4, 5, 8,","3,4,5,6",credit
  SoftwareCitation,y,softwareCitation,-,hasPreferredCitation,notes ?,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,"3, 4, 5, 6","3, 4, 5, 6","3,4,12",citation_method
  SoftwareContributor,n - replaced by agent / role,-,Contributor,hasMajorContributor,contributors,contributors_url,-,contributor,contributor,-,-,Authors@R,-,-,-,-,contributors,contributors,-,-,"3, 4, 5","3, 4, 5, 8,","3,4,5,6",
  SoftwareIdentifier,y,identifier,Identifier,hasUniqueId,id,id,?,-,identifier,Persistent identifier,identifier,Package,Package,-,-,-,name,groupId,-,-,1-12,"2, 3, 4, 5, 6, 8, 9,","3,5,6,12",ascl_id 
  SoftwarePaperCitation,y,softwarePaperCitation,-,-,notes ?,-,-,Citation,-,-,-,-,-,-,-,-,-,-,-,-,"3, 4, 5, 6","3, 4, 5, 6","3,4,12",described_in
  SoftwareTitle,y,title,Title,hasName,title,full_name,Title,software,title,Software title,title,Title,-,name,Title,name,name,name,DESCRIPTION/Name,name,"1, 3, 4, 5","1, 3, 5a-d","3,5,6",title
  Suggests,y,suggests,-,hasSimilarSoftware hasInteroperableSoftware hasCompositionDescription,related_identifiers,-,-,-,-,-,-,Suggests,-,-,-,optional_features,-,-,-,-,"1, 2","1, 2, 3, 7","2,7",
  Tags,y,tags,Subject,hasSoftwareCategory hasDomainKeywords,keywords,-,tags,-,keywords,-,subject,-,-,keywords,-,keywords,keywords,-,-,-,"1, 3","1, 3","1,3",
  TestCoverage,? - only in ontosoft,-,-,hasTestData has TestInstructions,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,3,"1, but missing use case to understand software quality/standing",11,
  UploadedBy,y,uploadedBy,-,hasPublisher,owners (?),-,-,-,uploadedBy,-,-,"*Three letter code can specify other roles like author above: http://www.loc.gov/marc/relators/relaterm.html, https://journal.r-project.org/archive/2012-1/RJournal_2012-1_Hornik~et~al.pdf",-,-,-,-,-,-,-,-,"3, 4, 5","9, 11",-,added_by
  Version,y,version,Version,hasSoftwareVersion hasVersionReleaseDate supersedes supersededBy,-,-,-,Version,-,Software version,-,Version; numeric_version,Version,version,-,version,version,version,DESCRIPTION/Version,version,"2, 3, 5, 7, 8, 9","2, 3, 4, 5, 6, 7, 8, 9, 11, 13","5,8,9",
  ZippedCodeLink,y,zippedCode,-,-,filename,archive_url,file,-,-,-,-,-,-,download_url,-,-,-,-,-,-,-,-,"5,9",