Subject: SD beginner : immaterial flow modeling for computer science topic ?

Posted by Michel Lutz on 6/17/2010
In Reply To:SD beginner : immaterial flow modeling for computer science topic ? Posted by Martin Schaffernicht on 6/16/2010

Message:

Thanks Martin, I've just received your email, don't know why it arrives so late.
What you are explaining is not really true for CPU capacity, which does not deal with bytes free or occupied, but with clock time used or not (or CPU cycles in use, per Warren's approach).
But what you are describing is the point for a 2nd step of my work, the space free on the database. Here we are talking about bytes used/free. But I a not sure why I should use 2 stocks. My idea was :
- a stock "database space used"
- inbound flow "increassing Kbytes required"
- outbound flow "decreasing Kbytes required"
Looks wrong ?

Follow Ups:

SD beginner : immaterial flow modeling for computer science topic ? - Martin Schaffernicht 6/17/2010