makeing dropdown field values from ztable is it right way?

Hi

i have to add one field in webui that field type should be dropdown and i need to maintain nearly 16 values in that field for this purpose i went through AET and added on field and i given field type as CHECKTABLE AS DDLB and its asking for CHECK TABLE then i gave which is already created ztable.

i created one ztable and in that table i enter zfield and for this field i maintain entries 16.

in webui i am getting that field as dropdown and which contains 16 entries is it right way to do like this?is it best way to do dropdown values?

or we need toadd ztable after that we need to redefine get-p and we need to maintain entries in get-v in that field is it rgt way?

please tell me which is most preferable?