Can someone explain me "Design for self" , "Design by copy", and "Design by research" terminologies?
While researching for design questions, I came across these three terminologies, but I am not sure if I have completely understood the meaning. Can someone with more experience please expand the terms ?

 1. This is what I have so far : 
     1.  "Design for self" : Designer assumes the customer is just like
    him
     2.  "Design by copy" : ???
     3.  "Design by research" : A lot many design decisions will be
    taken only after abundant user-data. (Based on user data design
    decisions will be taken)


Can someone explain me "Design for self" , "Design by copy", and "Design by research" terminologies?
===

While researching for design questions, I came across these three terminologies, but I am not sure if I have completely understood the meaning. Can someone with more experience please expand the terms ?

 1. This is what I have so far : 
     1.  "Design for self" : Designer assumes the customer is just like
    him
     2.  "Design by copy" : ???
     3.  "Design by research" : A lot many design decisions will be
    taken only after abundant user-data. (Based on user data design
    decisions will be taken)

