Import ESS Business components(SCA)

Hi Exports,

1>>> I have a DC like ESS personal Information Application (This application was standard java Application) in this application i wanted to customised  .. i this application i wanted to add some custom fields.

  In my company client not Using NWDI  ..  basically in this scenario we will create NWDI track and import into NWDS..

in  my case  my client  not using NWDI...  so i wanted to customize this application kindly help me how can we do ASAP.

Please kindly send me set by step process i am very new to this

Regards,

Vreddy