PARTI
Asuitable concept should of course be appropriate
and relevant to the natureof the design problem. ln
addition, both adesign concept and its graphic
portrayal in adiagram should have the following
characteristics.
Aparti diagram should be:
• Inclusive: capable of addressing the multiple
issues of adesign problem
•V
isually descriptive: powerful enough to guide
thedevelopment of adesign
• Adaptable: fiexible enough to accept change
• Sustainable: able to endure manipulationsand
transformations during the design process
without aloss of identity
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D
FREEHAND DRAWING
I 207