A wellconstructed analogy can be more or less isomorph in the studied domain.    From Wordnik.com.  [The Office of Sternberg Coddling - The Panda's Thumb] Reference

"Patterson methodology", which has been very important in structural inorganic chemistry, and in "isomorph substition".    From Wordnik.com.  [Press Release: The 1985 Nobel Prize in Chemistry] Reference