I'm doing for my final year project on the expert system in diagnose diabetes... then I really need a help from expert to help me in verify a set of rule base for diagnose the risk of diabetes. Below is the rule based, can please help me verify the truth of the rule?

1 age young and BMI underweight then risk very-low
2 age young and BMI normal then risk very-low
3 age young and BMI overweight then risk low
4 age young and BMI obese then risk moderate
5 age middle-age and BMI underweight then risk low
6 age middle-age and BMI normal then risk low
7 age middle-age and BMI overweight then risk high
8 age middle-age and BMI obese then risk very-high
9 age old and BMI underweight then risk moderate
10 age old and BMI normal then risk moderate
11 age old and BMI overweight then risk very-high
12 age old and BMI obese then risk very-high
13 blood-glucose normal then risk very-low
14 blood-glucose low then risk moderate
15 blood-glucose high then risk high
16 blood-glucose very-high then risk very-high
17 diabetes-family no and history-GD no then risk very-low
18 diabetes-family no and history-GD yes then risk high
19 diabetes-family yes and history-GD no then risk moderate
20 diabetes-family yes and history-GD yes then risk very-high

Diabetes-family:member family with diabetes
History-GD:history of gestational diabetes
Young <40 years
Middle-age 40-60
Old >60

It is very urgent, I wish I can receive the reply soon...
Thank very much for the help...

The definition of a Family member isn't defined. e.g. If wife has diabetes then what's risk of diabetes for the husband? I believe it depends on Family member. Better word, I think, is sibling which is a person's brother or sister.

What about "Juvinile diabetes"? You might call this "Risk of developing type 2 diabetes"

Is there a "vote" or once a rule is satisfied, the expert system is satisfied. e.g. It's conceveable to get different results (low, moderate, high) based on the answers to the rules.
Does two lows and a high make a moderate?