hey
sorry for not making myself clear, kind of hard to explain.
I have to make a decision table and it looks like this
hopefull this will help

RULE | DOCTOR
---------------------------------------------------
Name|y|n|n|n|
Addy|Y|y|n|n|
Date|y|y|y|n|
Time|y|y|y|y|
Book?|y|n|n|n|


to explain this table:
I have the rules that have to be yes in order for the booking to go a head.
If they are all Y then the booking is a y

If even one of them is a n then the booking is a n



I have about 8 or 9 rules before the booking, which means i have over 200 different combernations (sp?) to work out

Does this make sense?