profile foreach role

Hi,

I have three or two at least kinds of user(2 roles other than the administrator)?Each one has to enter different data when he register.So what is the solution?Is it to make a profile for each role?If this is the best solution how could I do it?I used to use only one profile even when using more than one role.If there is another solution better than make profile for each role please tell me what is it?
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