Abstract:
This work aims at establishing a framework for inter-disciplinary building design working, and
developing a computer-based design aid which demonstrates the framework as well as
enhancing the effective use of design information using intelligent knowledge-based system
(IKBS) techniques. Design activities were initially discussed in logical terms taking account of
stereotypes as starting points for design solutions. A conceptual model of design activities
was then proposed, where these were characterised in terms of three different features, i.e.
information, design decision and performance. Subsequently, the building design process
was structured into a hierarchy of design issues and design tasks, and was then described
rationally, relating to the conceptual model, in terms of three kinds of design variables, i.e.
information, design decision and performance variables. The information regarding the
design process was, meanwhile, elicited from publications with particular reference to
daylighting and lighting design aspects, and itemised into a number of knowledge units. Based
on this information, a framework for inter-disciplinary building design working was eventually
developed, where design activities are considered in terms of the relationships between the
design variables, and, as a result, a logical sequence of the design process was established. In
order to clarify the parallel inter-disciplinary aspects of the building design process, the design
knowledge was examined based upon the framework, and, eventually, developed into a
checklist for inter-disciplinary building design working which has a process-checking
capability. Subsequently, a prototype knowledge-based system was developed on the basis of
the framework, using a commercially available expert system shell, Leonardo. Examples of
stereotypes also formed a part of its knowledge. Demonstrating the checklist for inter-
disciplinary design working, this prototype knowledge-based system proved the viability of the
checklist approach, as well as showing its process checking capability. It also exhibited its
potential ability to provide appropriate information at pertinent stages.
