Cloud Essentials Chapter 4: Index Cards Creator
Terms in this set (13)
Typical Steps Leading to Successful Cloud Adoption
■ Choose a low-risk application for a cloud pilot.
■ Consider which cloud service models best meet the business objectives (SaaS,
IaaS, or PaaS).
■ Consider cloud provider roles and capabilities.
■ Examine your dependencies on cloud providers and perform a risk assessment.
■ Determine possible changes to organizational roles and skills.
Cloud Computing Myths
"There is a single good level of cloud adoption." This is a myth. There are
various strategic options, such as don't do it, do have an internal cloud provider,
do be a customer of the cloud, do eliminate all internal IaaS, and so on.
■ "Cloud adoption eliminates all internal IT." This is not true. Even with
an aggressive strategy of externalizing, there can still be a brokering role for
IT departments to help with the business contract for cloud providers, as
well as to help with the increased demand for security, procurement, data
management services, and monitoring.
■ "The IT department can safely ignore the cloud." This not true. The IT
department must understand that cloud computing is so accessible that they
no longer enjoy a natural monopoly on IT. If they ignore the cloud, they will
be left only with the legacy applications. The IT department is in the best
position to be an internal cloud provider, as well as to help the business make
better use of external cloud providers.
■ "Data stored in the cloud is not secure." This is another fiction. Public
cloud providers are audited by third parties on a recurring basis and have
the expertise and resources to provide better security than most private
How Cloud Adoption Affects Different User Groups
User or Group Effect of Cloud Computing
Office workers * These users interact directly with applications delivered to them over the
network. The ability to store documents in the cloud facilitates collaboration.
The ability to access SaaS apps from anywhere using any device fosters a more
productive work environment.
Internal IT departments Cloud deployment requires IT expertise. IT workers will configure, monitor,
and maintain security and cloud service usage policies, as well as be involved
in negotiating service level agreement (SLA) details. Local IT staff will also
support client devices (desktops, laptops, tablets, and smartphones) and network
IT service providers Public and private cloud providers must provide the elastic, self-provisioned,
and on-demand computing infrastructure that characterizes a cloud. Private
cloud providers act as an external service provider for business units within the
which is a private
cloud in a manner of speaking
Private PaaS derives its business benefits from making databases that might contain
customer or product data, transactions, or statistics available for reuse.
Delivering web applications to end users internally is something most organizations
have been doing for a long time. Remember that SaaS is defined as delivering
productivity software to end users over a network. It should allow users to work
remotely anytime, from anywhere, using any type of device.
The cloud consumer (also known as customer or subscriber) is the person or
organization that maintains a business relationship with, and uses service from, cloud
providers, according to the NIST.
A cloud provider could be...
Because the dependency on a cloud provider is so great, be sure to have a
contingency plan in case your provider is no longer available. You might have
important data and virtual machines stored in the cloud.
A server with an operating system represents value. A
server with an operating system and a lot of specifically configured and finely tuned
software can represent a lot more value.
SaaS providers typically run their own software, rather than
licensing it from a software vendor. This makes the potential for software lock-in big.
Because SaaS providers typically charge on a pay-per-use basis, there is little software
license investment lost when such a provider suspends its service.
Moving applications to the cloud might involve......
Moving applications to the cloud might involve migrating existing on-premises
virtual machines to a cloud provider or building new virtual machines in the cloud.
Successful cloud adoption requires...
Successful cloud adoption requires a change to some organizational roles as well
as the ongoing reassessment of cloud computing.
SLAs that map to business
objectives represent roles that may have had limited impact previously. Monitoring
cloud services on an ongoing basis is crucial to evaluating effectiveness.
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