Editor's Note: Accenture’s Dean Griffin notes that enterprise architecture has entered the mainstream. Part One of this article, which appeared in the last issue of A&G, covered the first five challenges. Part Two discusses the remaining five challenges in EA.

Editor's Note: Accenture’s Dean Griffin notes that enterprise architecture has entered the mainstream. For practitioners, this raises a whole new set of challenges as they must now play a role in helping the enterprise achieve high performance. What follows is part one of this article, or the first five challenges in EA.