Mod: Short for modification. Games in the real world are often a mod of another game. Othello (or Reversi) is usually considered a mod of the ancient game of “Go”. A mod of a program is one that has been altered to do something slightly different than its original purpose.
Stub: A function whose domain and range have been designated, but the process to transform the domain into the range has not yet been defined.
Troubleshooting: When a program generates an unexpected result, a programmer must examine the code to determine the source of the unexpected results (usually an unanticipated input or incorrect handling of an expected input). Sometimes called debugging.
