How do you build extensible data model

Question

I\'m thinking of building a ecommerce application with an extensible data model using NHibernate and Fluent NHibernate. By having an extensible data model, I have the abilit

Answer 1

I'm searching for similar thing and just found N2 CMS (http://n2cms.com) which implements domain extensibility in quite usable way. It also supports querying over extension fields which is important. The only downside I find out is that it's implemented using HQL so it would take some time to reimplement it to be able to query using QueryOver/Linq, but the main idea and mappings are there. Take a look on ContentItem, DetailCollection, ContentDetail classes, their mappings and QueryBuilder/DetailCriteria.