title: How to design the model classes for data retrieved via JSON
body: <p>Our Rails3 app retrieves all data from a REST server (e.g. for create/update/delete/find ..), what abstraction should we build so that we can convert the JSON output to a object on the Rails side. Does it make sense to use a ActiveRecord object in this case, it seems to be little heavyweight since we will not perform any database persistence calls using the ActiveRecord object. What design paradigm should I use?</p>