Autodesk Ecotect Analysis 2011 is software which is used for design and analysis. The software provides its users with a wide variety of analysis functionalities as well as simulations that can assist in the improvement of designs of new buildings as well as of the existing ones. It has capabilities for analysing of water, carbon-emission as well as online energy which are integrated with the tools which are being used to simulate and visualize the performance of the building within the framework of the environment. Autodesk Ecotect Analysis 2011 provides its users with the capability to interrelate using 3D in order to discover the different factors such as shadows, solar, daylight as well as reflections. The package also includes an Autodesk Green Building Studio which is a web-based tool used for analysis for energy which enables its users to evaluate various design alternatives being used for carbon neutrality and energy efficiency.