structuring winforms c# solution

so i am reorganizing winforms c# fortitude assistance decouple cleaner some-more organized. fortitude outlines little business orders,etc . .

i have damaged out projects distant into

app.view - gui associated code

app.data - only information structures interfaces. doing code

app.businesslogic - business explanation formula gui references

i have classes i can't figure out where belong. greatfully let me know your thoughts digest any category should there another digest should combined this.

1. a category retrieves user preferences database


2. a category retrieves stationary information the stationary information server advantage sets information results.


3. a category brings down user entitlements


4. a denote category stores hashtable orders


5. a category emails out messages user action