Hello, I'm looking for advice related to the following question: I set up a store full in zope. I'll have 3000 articles wich are all the same (DVD). Each one has got a lots of acteurs. my question is; Do I have to store acteurs objects in on folder allacteurs or those objects have to be store in each DVD folder. In other word, the strucuture should be like this: -Root- l--DVDS- l l--DVD1 l l--DVD2 l l--allacteurs- l--acteur1 l--acteur2 or: -Root- l--DVDS- l l--DVD1- l l--acteur1 l l--acteur2 l l--DVD2- l--acteur1 Important things is that acteur objects hold 4 properties like sex, star or not star .... Then when a user look a a DVD, acteurs (wich are in the casting of this DVD) are listed and should be sort on star properties for example. I don't know when the most efficient way is all acteurs in a folder or instances of acteur object like subobject of a film. At this point my DVD instances held an thisdvdacteurs property (lines) with Ids of acteur object in lesacteurs. then i make a restricted traverse to access the name of an acteur folders. I got problem ti sort results by this way. the second important point is that I'll have to import a csv file wich contain all the base. For importing I think it wil be easier to have acteur object store in each DVD folder. Thanks for your advice§. When something is not enough clear ask me explanation (my english does not allways reflect my french mind !!) Merci oulala ______________________________________________________________________________ ifrance.com, l'email gratuit le plus complet de l'Internet ! vos emails depuis un navigateur, en POP3, sur Minitel, sur le WAP... http://www.ifrance.com/_reloc/email.emailif