Thre model contains all the domain logic, so yes, it is the most difficult. The other two are pretty simple in comparison.

>Yes, at this point (after reading some articles on-line) I understand. And it looks to me that the most challenging and probably difficult is the Model of the three. Thank you.
>
>>Model = Data and business logic
>>View = UI
>>Controller = traffic cop. Handles moving data between the model and view.
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>>>I have a very tough time understanding these concepts of patterns. So hopefully their videos come down to my level <g>.