Explain what are the different modes of software as a service (SaaS) in cloud computing?

Question

Explain what are the different modes of software as a service (SaaS)?

Answer 1

a)      Simple multi-tenancy :  In this each user has independent resources and are different from other users, it is an efficient mode.

b)      Fine grain multi-tenancy:  In this type, the resources can be shared by many but the functionality remains the same.