EXHIBIT (C)(3) AMENDMENT TO AGREEMENT AND PLAN OF MERGER THIS AMENDMENT, dated as of December 17, 1996 (this "Amendment"), to the Agreement and Plan of Merger dated as of November 12, 1996 (the "Merger Agreement"), among International Business...Agreement and Plan of Merger • December 17th, 1996 • Indigo Acquisition Corp • Services-prepackaged software • New York
