Quoting jykke:

Quote:
I have to agree with Rifter here on Story by being the same as Written by.

The notes section in the Rules says that Original Material is adapted from another medium. The help text in DVDP itself says "Book, poem, song, etc". I always thought that it means something published material. Eg. in case of Lord of the Rings "Original Material By" suits perfectly to J.R.R. Tolkien. But in case of a television series episode: what is the original material? In a television series episode "Story by" simply means that one person wrote the plot and another person wrote the teleplay based on the plot. Sometimes there is only Written by credit in the episode. That time the credited person wrote everything for the episode.

Whenever I have seen "Story By" and there is no evidence of original material available somewhere else, I have used Written By credit in DVDP.

Exactly.  And, if you look at a lot of the older movies "Story By" is the ONLY writing credit you will find.  Even a lot of the early TV series used that term.  I did a Brit series from 1956 recently that used it, though not exclusively.