I was wondering how J.A.R.V.I.S. was created. The Marvel wiki said that J.A.R.V.I.S. was created by H.A.M.M.E.R. Was Tony Stark involved in its development process?
In the Marvel Cinematic Universe (Earth-199999) J.A.R.V.I.S is an AI developed by Tony Stark first primarily as being an artificial assistant in his house, and later modified to perform a lot of functions in the Mark 2 - 47 suits.
In the main Marvel Comic Universe (Earth-616) J.A.R.V.I.S is an artificial intelligence that Tony Stark creates in order to assist Pepper Potts in using the suit that he built for her (called Rescue). This J.A.R.V.I.S was directly inspired by the one in the first Ironman film.
None of the current cited articles in the comments say that H.A.M.M.E.R created J.A.R.V.I.S.