Best practices for partitioning users? I'm building an app that will be used by lots of users who will be segregated according to the organisation to which they belong. No real problem there, though I am wondering about the "username space".
Usernames need to be unique, but the question is should the username be unique across all users, or just users from the same organisation? Seems to me that if it is "users from the same organisation" then I need a neat way to allow the system to recognise which organisation a user belongs to before they attempt to log in (the user shouldn't have to specifically identify the organisation as well). The only way I can think of to do this is to use differrent URLS for each organisation so that the system can identify the organisation without the user having to knowingly identify themselves. Any thoughts? Paul
