Describing the Elephant: The Different Faces of IT as Service, ACM Queue, July/August 2005.

PDF: http://acmqueue.com/special/ftpfiles/articles/foster.pdf
HTML: http://acmqueue.com/modules.php?name=Content&pa=showpage&pid=319

Regards -- Ian.

_______________________________________________________________
Ian Foster                    www.mcs.anl.gov/~foster
Math & Computer Science Div.  Dept of Computer Science
Argonne National Laboratory   The University of Chicago   
Argonne, IL 60439, U.S.A.     Chicago, IL 60637, U.S.A.
Tel: 630 252 4619             Fax: 630 252 1997
        Globus Alliance, www.globus.org