Software as a service (SaaS). This are clients who rent usage of applications running within the cloud provider infrastructure. An example of this is SalesForce. These types of applications are offered to clients via the internet and are managed completely by the cloud provider. This implies that, the administration of these services such as updating and patching is the responsibility of the cloud provider. An advantage of this type of cloud computing service is that all clients are running the same software version and new functionality can be easily integrated by the provider and is therefore available to all clients.
Platform as a service (PaaS) offers an application platform as a service. Example of this type of cloud computing service is Google App Engine. This enables clients to deploy custom software using the tools and programming languages offered by the provider. It makes them have control over the deployed applications and environment related settings. The management of this service is the sole responsibility of the cloud service provider.
Infrastructure as a service (IaaS) type of cloud computing service delivers hardware resources such as CPU, disk space or network components as a service. These resources are usually delivered as a virtualization platform by the cloud service provider and can be accessed across the internet by the client. The client has full control of the virtualization platform and is not responsible for managing the underlying infrastructure.
Storage as a type of cloud computing service (STaaS) is a business model in which large service provider rents space in their storage infrastructure on a subscription basis. The economy of scale in the service provider’s infrastructure allows them to provide storage much more cost effective than individuals or corporations can provide on their own storage, when the cost of ownership is considered. Storage as a service is often used to solve off-site backup challenges.
Security as a service (SECaaS) is a business model in which large service providers integrate their security services into a corporate infrastructure on a subscription basis, which is more cost effective than most individuals or corporations can provide on their own, when total, cost of ownership is considered.
Data as a service (DaaS) is based on the concept that the product, data is in this case, can be provided on demand to the user regardless of the geographical or organizational separation of provider and consumer. Additionally, the emergence of service oriented architecture (SOA) has rendered the actual platform on which data resides also irrelevant. This has enabled the use of DaaS.
Test environment as a a service (TEaaS) at times referred to as on demand test environment is a test environment type of cloud computing, in which software and its associated data are hosted centrally and are typically accessed by users using a thin client, normally using a web browser over the internet.
Backend as a service (BaaS) referred also to as a mobile backend service (MBaaS) is a model for providing web and mobile app developers with a way to link their applications to backend cloud storage while also providing features such as user management, push notifications, and integration with social networking services. These services are provided via the use of custom software development kits (SDKs) and application programming interfaces (APIs).
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