There is no meaningful one. If the industry can't make the distinction then it's futile to hope that the government will. Having gone through the visa process,

There is no meaningful one. If the industry can't make the distinction then it's futile to hope that the government will. Having gone through the visa process, it's simply a case of having the right keywords in your work experience (SQL! Check!) - it's quite possible that those checklist items are different between the two jobs, but any enginner/developer will have sufficient overlap that they'd qualify for both.