Role Management in asp.net MVC

Question

Hi, 

Create three table , 

Table1  RoleUser:

Roleid,rolename,roledescription,status

Table2 Permission

PermissionCode,Action,Description,status

Table 3 RoleDetail

RoleDetId,PermissionCode,RoleId

I want to create Role management using based on users using mvc pattern , can anyone explain check database.