Difference between 設計 and 提案


Could you please explain the difference in meaning between 設計｛せっけい｝ and
提案｛ていあん｝? Could they be interchangeable to mean "to suggest"? Thank you in
advance.




提案 is _to suggest_ in the sense of _to make a proposal_. You always need
another person (for example your business client) to do 提案. In another word,
提案 refers to saying "Let's do ～". Note that 提案 never means _to suggest_ in the
sense of _to imply/say/remind_ (as in "The lion suggests bravery" or "The
letter suggests he's angry").

設計 is _to design_ (a product, a building, software, etc.) or _to engineer_. As
long as you have a good engineering skill, you can finish 設計 all by yourself
with a pen and paper, or CAD software. I don't know when this means _to
suggest_. 設計 always refers to engineering design which does not require a
sense of beauty. Graphic design, interior design, dress design and such are
usually called デザイン.

