1.A cloud service model describes what services a cloud provider provides to the customer.
2.A cloud deployment model describes how cloud infrastructure is set up, managed, and made available to users or organizations.
3.Bifurcation means dividing the cloud service model into different types like IAAS,PAAS,SAAS.
4.Cloud deployment models are mainly divided into 4 types as public cloud, private cloud, hybrid cloud, community cloud.
5.The role of service models is to define what cloud services are provided to the customer. The role of deployment models is to define how the cloud infrastructure is deployed, accessed, and managed.