How do assign roles in sap basis

               In SAP BASIS assigning of roles is very important  step to the employees. This is the small guide to how assign roles in the sap basis. the step by step procedure to guide assigning of single and composite roles in the sap basis.
step 1: Login the master user name and password as per our requirement

step 2: Execute the t code su01 and create the user name as per our requirement.

step 3 : After creation of user then you have to login with master user name and password.

step 4 : then execute the t code pfcg, then you will see the below dialog box.

Step 5: Role maintenance dialog box will open create the role name start with X, Y, Z only as seen below image.

Step 6: for example create the single role then click role button,

              ----> click the menu button, then add the description.

             ------>click the transaction button then add the tcode for authorization, then add assignment.

             ---------->click save button, then click the authorization menu, then find the change                                                authorization data

             ---------------->then click the generate button then it showing the profile has been created. During creation of this profile profile wizard showing and edit as per our requirement.

            -------------------->then click the user button then you have to enter the required user name , click the user comparison.

Step 7: Then you will see the role and profile automatically created in the user...