the paper introduces a new topic concerns with implementing users lifestyle in future CAD systems specifically nD CAD tools. The objective of the research is vaguely clarified and needs to be re-written clearly for the user. For example, in the abstract the author should clearly modify the sentence beginning with 'This paper suggests that various aspects...' and then adds 'such as 1, 2, 3 etc. So clearly mentions these aspects to the reader.

The proposed research framework diagram is very abroad and does not show what user lifestyles are involved. I suggest that the author defines these lifestyle items in Section 3 in depth instead of from general perspective. For example, what does quality of living made of? How can it be measured? Another example, what is the definition of spiritual/material need as part of lifestyle? It is so important to study describe define these aspects of lifestyle. There is great deal of theory in the logic of social dimension by Prof. Bill Hiller. Even nD CAD tools & research in Salford University is based on it.

General notes on language and paper:
- Section 1 paragraph 1: 'The architecture mission...' should be 'The
mission of architecture is to ...'
- Always use he/she throughout the paper, instead of 'he' only.
- Page 3, second paragraph: change '3D CAD models invented...' to '3D CAD systems created...'
- Move all the endnotes after the References section and re-write them
within the text. If possible, explain briefly these endnotes within the actual body of the text.
- Page 3, paragraph 3: the statement is not true. It reads as if IFC improves the decision making process and so on. Instead, IFC enables good interoperability of CAD models between CAD tools. Please revise this whole paragraph.
- Page 4, second paragraph: delete this sentence '(e.g. expressed in
dimensions, monetary units, etc.) at the end of the paragraph.
- Section 3, first paragraph: change 'attitude research' to 'research
about attitude'.
- Section 3, first paragraph: change ''he pointed out that buildings have always...' to '... architects have always...'
- Page 5, second paragraph: explain more with an example how the flats do not reflect people lifestyle and beliefs. Mentions and example what modification the residents of these flats mad in order to reach best solution for such living space.
- Use 'Express Diagram' to describe the IFC lifestyle specification. See
[http://www.iai-international.org/Model/documentation/R20/Online_Documents/Documents/IfcGeometryResource.htm] for example.
- Finally, follow the standard referencing method as described in the ASCAAD paper template.
