1. A map is representation of an area on a flatsheet of paper.

2. Maps are drawn on a definite scale. Without scale, a map is simply a rough sketch.

3. Conventional signs are used to show the various features of the earth surface.

4. Maps have two dimensions - length and breadth.

A chart is simply a diagram showing the different types of statistics. Charts are generally used to show the ocean routes.

The word plan is used for property maps of cadastral maps. These have a scale larger than 6"=1 mile. Then shows the details of the property of land or a building.