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What is Cloud? — Part 2

Since cloud is such a big topic. I want to dive into it more a bit. Last week we talked about what the pros and cons are for using it as a service. This week will be about what can the cloud provide for your organization? There are 3 main services IaaS, PaaS, & SaaS that a provider will have.

Image from Alibaba Cloud Services

From a traditional or on premise IT standpoint. Everything is managed by the organization. However certain aspects can be offload to the cloud not just servers, computers and storage.

Image from Azure

Infrastructure as a Service (IaaS) — is what people normally think of cloud services. Having all the hardware provided by the provider such as AWS, Azure, IBM, Alibaba Cloud and others.

Features:
Low Cost — No need to purchase hardware outright and no specialist needed. Managed by provider. Pay as needed or demand.
Better security — managed provider. better than in-house most of the time.
Stability, reliability, and supportability — Done by provider.

Image from Azure

Platform as a Service (PaaS) — Development environment in the cloud, with resources that enables everything from basic apps to enterprise applications. For customers to develop, run, and manage applications without the building and maintaining hardware typically associated with application developing and launching.

Key Features:
Low Cost — Allowing organizations to develop without worrying about the underlying infrastructure.
Development Friendly — Enables organizations to focus on development. Has a suite of prebuilt tools to develop, customize and test.

Image from Azure

Software as a service (SaaS) — Allows users to connect to and use cloud-based apps over the Internet. Such as office 365, google apps, dropbox and others. It simplifies use over the internet.

Key Features:
Ease of use — Vendors provide users with software and applications via a subscription model.
Security — Data is secure and managed by provider.

Depending on the type of business it may be plausible to use cloud. However SLA needs to be iron out to figure out the total cost. Other things to talk about is security. How it is managed? Is it split responsibility? Is it good enough for your industry such as HIPAA, GDPR etc.

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