Question

What are different ways in which spatial data is built in GIS core?

Answer 1

Spatial Data Input is the spatial database into a GIS. It can be created from a variety of sources. These could be summarised into the following two categories:

1. Acquiring digital data sets from Data Suppliers: The present-day data supplies make the digital data readily available, which range from small-scale maps to large-scale plans. For many local governments and private organizations, such data form an essential source and keep such groups of users free from overheads of digitizing or collecting their own data.
2. Creating digital data sets by manual input: The manual input of data to a GIS involves four main stages.
   1. Entering the spatial data.
   2. Entering the attribute data.
   3. Spatial and attribute data verification and editing.
   4. Where necessary, linking the spatial to the attribute data.