Complex sentence: Integration was ranked as one of the leading investments for 2003, and well over 80% of U.S. companies budgeted for some type of integration in 2002 and roughly one-third of U.S. companies defined application integration as one of their top three IT investments in 2003.
Split into simpler sentences: Integration was ranked as one of the leading investments for 2003. Well over 80% of U.S. companies budgeted for some type of integration in 2002, and roughly one-third of U.S. companies defined application integration as one of their top three IT investments in 2003.