I have a polygon layer of postal code areas and I want to use them to create sales territories based on where our sales people are based. So I assume that I need to work out for each of the polygons which is the nearest point on the sales person point layer. I suppose that I could do this on the nearest part of the polygon or the centroid ... I don't think it would make much difference.
Can someone point me in the direction of what this type of analysis is even called?