What's the difference between parcel based and pixel based approaches in GIS?

Question

What's the difference between parcel based and pixel based approaches in GIS?

Answer 1

Since:

Pixel is the smallest element of an image that can be individually processed in a video display system (from: pix-, pics, pictures and -el, element).

Parcel mean portion, part, or fragment, especially a distinct, continuous portion or tract of land.

In GIS (Geographic Information System) that are computer applications used to store, view, and analyze geographical information, especially maps, "parcel-based" is referring to an approach oriented towards a general area or lot, while "pixel-based" refers to an approach more detailed, to a specific point.