Heather's company has decided to use a new customer relationship management tool. After performing the appropriate research, they decided to purchase a subscription to a cloud-hosted solution. The onl

SaaS (Software as a Service) is a cloud model where the vendor owns and maintains all underlying hardware, the operating system, the application software, patching, and monitoring. The customer's only administrative task is managing user accounts, which exactly matches the scenario described for Heather's company.

IaaS (Infrastructure as a Service) provides virtualized compute and storage resources, but requires the customer to manage the operating system, middleware, and any installed applications.

CaaS (Containers as a Service) provides a managed container orchestration platform but still requires the customer to build, deploy, and manage their containerized workloads.

PaaS (Platform as a Service) provides a managed runtime environment for custom application development, but the customer is still responsible for developing and deploying their own application code.