[otrs] Customer Fields add

I have implemented the OTRS and finishing the configuration in Fedora Platform, but I need to add more fields to Customer Table, I don´t know if the best idea is to use LDAP, (I don´t have a problem with authentication), only need to add for example Address, Zip Code, and fields like this. I found in the documentation how to add an external backend, but I don´t know if it´s the best idea. Regards Martin Waichman Director Serbiznet