LOGICAL ANALOGIES
Logical analogies are analogies, which use similarities in the design, structure or function of to connect back to the subject. For example a duck can be compared to a hovercraft because of the fact that both of them can move on the surface of land and water. Another example is the comparison of the whale and a submarine, where both can dive to great depths but still need to surface for air. (Sourced from: Nicholas Rourkes’ Art Synectics.)
AFFECTIVE ANALOGIES
Affective analogies are the emotional resemblance. The clearest example is the use of an animal to explain a certain characteristic of a person. This type of analogy is used most frequently in conversation to emphasis certain points. For example, he is like a pig (because he is lazy), she is like an ant (because she is hard working), he is like an owl (because he is wise), etc. This type of analogies uses the intrinsic values of the object as a comparison.
(Sourced from: Nicholas Rourkes’ Art Synectics.)