I have blogged a number of SIPOC posts that has generated a number of hits, questions and requests firstname.lastname@example.org for original pictures/diagrams that sometimes don't show up well on the blog.
Good SIPOC diagrams just don't happen and many of the "pretty" looking ones don't have enough "meat" to make any sense or define a process well enough for improvements.
In order for a good SIPOC Analysis you need good questions and to be a good interviewer.
This post will provide a SIPOC questionnaire that should provide you with a good model (start) for any type of process. Good Luck and remember to Email me if you need a better diagram. My only request is that you let me know if it helps you and if you can improve it in anyway for others to utilize. CLICK ON PIC TO ENLARGE
For more qualityg posts on SIPOC go to http://qualityg.blogspot.com/2006/10/quality-tooltechnique-sipoc-cccc.html
Educational SIPOC Example at http://qualityg.blogspot.com/2006/11/quality-education-nclb-state-data.html