How is surveying done?

Surveying is done based on the following principles of surveying:

1. To work from whole to part.
2. To locate a point by two measurements.

To work from whole to part:

• It is the main principle of surveying, the principle of working from whole to part should not be adopted until there is no alternative.
• The main idea behind working from whole to part is to identify the errors and distribute equally.

To locate a point by two measurements:

• The control points (any two important features) are selected in the area and the distance between them is measured accurately.
• The desired point can be located by making two suitable measurements from the given control points.