Re: Data Flow Diagrams

[Tony Markos <ajmarkos -at- yahoo -dot- com>]

--- Janet Swisher <swisher -at- enthought -dot- com> wrote:

 For those of you still wondering what a DFD is, here
 is a chapter with
 examples:
 
 http://www.yourdon.com/books/msa2e/CH09/CH09.html

Tony Markos responds: 

Thanks Janet.  The Yourdon methodology is great!  

Yourdon is a real street fighter.  His approach: rapid
iterations.  Thats why the curved lines in Yourdon
DFDs: Don't take the time to draw straight lines;
quickly, with pencil, draw curved lines and then get
back out there with the user and walk through your
latest iteration.

For those who say that I am too gun-ho about DFD's, I
remember when I went through the Yourdon course on
DFDs.  Our instructor was like a firery evangelical
Pastor.  He would stand in front of the class and wave
a copy of Yourdon's "Gospel" above his head, as he
passionately espoused the principles of DFDs.

I used to converse with a lady who was a former
Yourdon instructor.  She referred to those who
followed "the word" as people who have the "Yourdon
fervor."   To face the dangers of DFDing that I
referred to in a previous posting, one has to be very
fervent about DFDing - and the Yourdon people know it.

Tony Markos




		
__________________________________
Do you Yahoo!?
Yahoo! Mail Address AutoComplete - You start. We finish.
http://promotions.yahoo.com/new_mail 

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

ROBOHELP X5: Featuring Word 2003 support, Content Management, Multi-Author
support, PDF and XML support and much more!
TRY IT TODAY at http://www.macromedia.com/go/techwrl

WEBWORKS FINALDRAFT: New! Document review system for Word and FrameMaker
authors. Automatic browser-based drafts with unlimited reviewers. Full
online discussions -- no Web server needed! http://www.webworks.com/techwr-l 

---
You are currently subscribed to techwr-l as:
archiver -at- techwr-l -dot- com
To unsubscribe send a blank email to leave-techwr-l-obscured -at- lists -dot- techwr-l -dot- com
Send administrative questions to lisa -at- techwr-l -dot- com -dot-  Visit
http://www.techwr-l.com/techwhirl/ for more resources and info.