1 EXHIBIT 16 [LETTERHEAD OF PRICEWATERHOUSECOOPERS LLP] August 3, 1998 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Ladies and Gentlemen American Management Systems, Incorporated We have read Item 4 of American Management Systems, Incorporated's Form 8-K dated August 3, 1998 and are in agreement with the statements contained therein. Yours very truly, /s/ PricewaterhouseCoopers LLP