Every product need to have a separate userid and group in which it belongs and should be added as owner to the product to manage and maintain .
root@localhost bea14]# groupadd weblogic
[root@localhost bea14]# useradd -g weblogic weblogic
[root@localhost bea14]#
[root@localhost bea14]#
[root@localhost bea14]# id weblogic
uid=1002(weblogic) gid=1001(weblogic) groups=1001(weblogic)
[root@localhost bea14]#
example above Weblogic id is used for oracle weblogic id .