Various planning software is available in the market half key features 2D drawing and 3D modelling.

ArchiCAD is an architectural CAD software developed by Graphisoft which allow us to do 3D as well as 2D drafting visualisation for building model and this is the best 2D software.

Apart from that, the following software we can also use:

• Infornia
• Floorplanner- we can create a 2D 3D floor plan
• Plan floor creator

Remote Sensing:

I am discussing various advantages and disadvantages of Remote sensing.

Advantages of Remote sensing:

• A larger area can be sensed remotely in a very easy way and the whole data can be easily processed and analysed fast by using the computer and that data is utilised for various purposes.
• Data Collection is really very easy over a variety of scales and solutions
• Remote Sensing can allow repetitive coverage which generally comes manually when collecting data on dynamic themes like water and Agriculture field
• Remote Sensing can allow covering a very large area.

Disadvantages of Remote sensing:

• Remote Sensing requires one special type of training for analysing the images
• The biggest disadvantage is its cost. It is one of the expensive methods of analysis and hence it is not used to analyse the small area
• Again it is one of the expensive methods to analyse repetitive photographs
• Radar is one of the powerful active Remote Sensing System but it affects the phenomenon being investigated
• Actually whatever the information provided by the Remote Sensing data may or may not be complete and it’s temporary.