Entities

i have read some articles about that and read the node_example module.
thank you Mile23 for telling me about entities.

so we should define standard entities to share between our modules.
defining fields to use like :
for users : grid / map / uuid / name...
for grids : name, loginuri...
etc...

maybe there is already an international standard about storing virtual world user informations... i don t know
like a postal address, usually, there are : name , street, street number, town, zip code
but for avatars...

@Austin : have you heard about an universal standard to store avatars account fields ?