I pushed a change draft for Issue #292 : “Specify a default for result.rank” Documents/ChangeDrafts/Active/sarif-v2.0-issue-292-rank-default-0.docx We will move its adoption at TC #29 on Wednesday December 12 th . Please read the discussion thread in the issue to see how we concluded that 0.0 (lowest rank) was a reasonable default value. If your short on time, my last comment sums up the argument. Thanks, Larry