Cloud computing for enabling ubiquitous, convenient, on demand network access to
a shared pool of configurable omputing resources that can be rapidly provisioned
and released with minimal management effort or service provider interaction. NIST
defines three service models, which are viewed as nested service alternatives:
Software as a service (SaaS): The consumer can use the provider's applications
running on cloud infrastructure.The application are accessible from various client
devices through a thin client interface such as a web browser. SaaS ekunubates the
complexity of software installtion, maintenance, upgrades, and patches. Examples of
services at this level are Gmail, Google's email serive, and salesforce.com, which
helps firms keep track of their customers.
American Red Cross uses (SaaS).
The prominent emergency relief and preparedness organization uses
Salesforce to manage their donor portfolio and plan fundraising activities.
With Salesforce, volunteers can use their own mobile devices to
coordinate disaster relief efforts and effectively manage relationships with
volunteers,
financial donors, blood donors, and recipients with minimal IT
involvement. Through powerful data analysis, Salesforce can also track
emerging trends,
as well as summarize performance in an easy-to-visualize manner.
Platform as a service (PaaS): The consumer can deploy onto the cloud infrastructure
consumer-created or acquired applications created using programming languages
and tools supported by the provider. PnchaaS often provides middleware-style
services such as database and component services for use by applicaions.)
Heroku uses PaaS. Heroku now belongs to Salesforce and is an example of PaaS
based on the managed container concept. As with many PaaS environments, it is
highly self-contained and integrates data services as well as a complete ecosystem
of its own.
Because of it’s app-centricity, Heroku has gained a reputation as less of an
enterprise solution. Instead, it has gained a following among the hobbyist and
production development crowd. It also helps that Heroku is pretty user-friendly,
allowing it to offer a more streamlined experience.)
For those keen to build on Heroku, I’ve seen apps built on this platform that has
managed to go for respectable prices. For example, The Regular, built to sell food
and drinks, is being listed on Flippa for around $25,000.
Infrastructure as a service (IaaS): The consumer can provision processing, storage,
networks, and other fundamental computing resources and can deploy and run
arbitrary software, including operating systems and applications. IaaS enables
cusomers to combine basic computing services, such as number crunching and data
storage, to build highly adaptable computer systems.
Amazon-AWS Elastic Compute Cloud (AWS - EC2) is a web service that provides
resizable compute capacity in the cloud. It is designed to make web-scale computing
easier for developers. AWS EC2۪s simple web service interface allows you to obtain
and configure capacity with minimal friction. It provides you with complete control of
your computing resources and lets you run on Amazon۪s proven computing
environment. AWS EC2 reduces the time required to obtain and boot new server
instances to minutes, allowing you to quickly scale capacity, both up and down, as
your computing requirements change. AWS EC2 changes the economics of
computing by allowing you to pay only for capacity that you actually use. AWS EC2
provides developers the tools to build failure resilient applications and isolate
themselves from common failure scenarios.
Best Infrastructure as a Service (IaaS) Providers. (2022). G2. Retrieved June 6, 2022,
from)https://www.g2.com/categories/infrastructure-as-a-service-iaas
Stallings, W. (2018).)Effective Cybersecurity. Addison-Wesley.
Staff, Z. (2021, July 30).)Four Successful Organizations That Use SaaS. Zco
Corporation. Retrieved June 6, 2022, from)https://www.zco.com/blog/four-companies-
using-saas/
Shim, T. (2022, March 30).)15 Popular Platform as a Service (PaaS) Examples. WHSR.
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business-ideas/paas-examples/
