Saas: Single-instance vs Multi-instance vs Single-tenant vs Multi-tenant?

Question

I\'ve been reading about instances and tenants and in the Saas architecture. My questions are as follows (please correct anything that you notice I\'ve gotten wrong with any

Answer 1

I'm going to write from my direct experience:

1) simple answer is 'yes'.

2) nearly yes: there will probably be refined access rights, say an administrator or two, and general users.

3) they're providing you with just one instance of that module, which will be single tenant.

4) they're providing you with multiple instances of that module, which will be single tenant.

5) I would use single-tenant to refer to the server hosting the instances is used by only one tenant. This might be done for perceived security benefits, or the server is running on a time zone that is non-standard for SaaS provider, like staying on UTC all year round.

6) I would use multi-tenant to refer to the server hosting the instances is used by more than one tenant. This tends to be more cost effective and probably just as secure as single-tenant.

7) yes, no, yes, yes.