I searched around and haven't seen quite the advice I'm looking for.
I am creating a site that will have multiple users from multiple organizations accessing and creating data base info. Any advice on how to structure this?
-It should not be possible (or at least easy) for someone to register as belonging to an organization that they do not belong to.
-many resources will be similar between organizations.
-I need to create queries on activity that all organizations are doing.
I am developing with WAMP. Any and all advice is appreciated, I'm a development noob :-)