1. Does the data model changed with eZ 5 ?No data model is the same as eZ 4

2. NoSQL Data Model is supported in eZ 5 ?

Yes a interface have been created for noSQL, but only one SPI hav been created.

3. Is it simple to create other model based on NoSQL ?

Yes it is very simple to create a new SPI but with need harms for that.

4. Memory data storage have been provided ?Yes, a memory data storage have been created for testing only. Because after rebbot all datas in memory are lost.Do not use for persistent variables, but could be used for cache.

5. What about large amount of data ?Listing lagr amount of data is still based on limit/offset pointers.In the future a new solution will need to be invented (array an pointer for exemple).

6. Does multiple database is supported ?Yes, of course siteaccess are supported in eZ5. So, configuration of multiple sites interfaces with different data base is still possible.

7. Any solutions fo import of large amount of datas ?

A custom controller will still necessary to do the import of data.Carefull with the cache, it is a good practice to desable cache during large import