That is a start but it goes considerably further than that; good requirements, design, and then implementation. Only then if you don't get some bonus feature of a bug.   Based on what I see implemented, this high resolution winds a loft, definitely has opportunity to miss a small but vital detail any where in that process. All of which could drive an erroneous answer.
 
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OldPilot wrote:
Accuracy of winds aloft is only as good as the information they are being fed.