Should i Map thecommon RFC Model to component contrl or custom controller?

In my webDynpro project , I have two modules one is DirectCustomer and InDirectCustomer. so i have set of RFS's in a single RFC model. In this  RFS's some are common to both the modules. some are independent to each other. so  i have created two controller component one for each module.Then i mapped the independent RFC'c to each controller seperately. But now the RFC's which are common to both modules to map, Better, should i map to  existing Componentcontroller or should i create new customcontroller (like commoncontroller).
which i option is better, can u suggest me. I feel that, The common RFC's will be mapped to component controller, bcz it the Base controller for the both customcontroller , indrectly to the viewcontroller.
Can any body give me the suggestion on this

Hi Vishal,
As far as I know it's recommended to use a custom controller for every RFC. This makes sense because if the RFC changes some day you only have to do changes in the specific custom controller.

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    IPrivate<viewname>.I<nodeame>Element prEle;
    for (int i = 0; i < table.size(); i++) {
    HROBJECT  pernrList = new HROBJECT();
    pernrList.setPernr(pernr); // Set the pernr from current record
    prEle = prNode.create<nodeame>Element(pernrList);
    prNode.addElement(prEle);     
    // call BAPI execute method
    Once I execute the BAPI how do i iterate thru second table parameter PERNR_PERFRAT to get pernr and performance rating text
    Say your node name is  PERNR_PERFRAT
    for (int i = 0; i < wdContext.nodePERNR_PERFRAT().size(); i++) {
    wdContext.nodePERNR_PERFRAT().getPERNR_PERFRATElementAt(i).getPernr();
    wdContext.nodePERNR_PERFRAT().getPERNR_PERFRATElementAt(i).getPerfrat();
    Regards,
    Siva

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