There are several stages in developing and using information technology to deliver its full benefits to building design for the construction industry:

1 . Specifying the user need

2. Developing application software

3. Testing and validating technical programs

4 . Encouraging understanding and use of appropriate systems

5. Integrating individual applications across disciplines

6. Establishing the right standards and commercial framework for integration.

The Energy-related Environmental Issues (EnREI) Programme was established in 1991 by DoE Construction Sponsorship Directorate and BRE, with the aim of reducing emissions of C02 and other greenhouse gases due to energy use in non-domestic buildings.