Chapter 15 In-Class Flashcards
Difference between Software as a Service (Saas) and utility computing
In Saas, a thrid party is hired to develop the software. In the platform as a service we have a team that develops the software and deploying software on the cloud. In infrastructure as a service, it offers physical hardware, which does not require deployment of a software (i.e. google drive).
Main cloud services
Microsoft Azure, AWS, Google Cloud
What is virtualization?
Data is confidential and sensitive, so public clouds are not suitable. So, some organizations are developing their own private clouds (virtualization).
Benefits of SaaS
lower costs (software licenses, IT staff, server hardware, system maintenance), faster deployment times, variable operating expense (because they never buy), mitigate financial risk (reduce patment during slow season), scalable systems (meeting demand spikes; salesforce for ex. is prepared for drastic changes), higher quality and service levels (huge customer case pushes), remote access and availability.
Other benefits of Saas
SaaS provider develops, tests, and supports single platform, tughter feedback loop to understand why products fail (earning money and using it to improve company), ability to instantly deploy bug fixes and product enhancements, lower distribution costs, less software piracy
Risks of SaaS
- Dependence on a single vector (susceptible to price changes)
- Concern about long-term viability of partner firms
- Users may be forced to migrate to new veersions (possibly incurring unforeseen training costs and shifts in procedures)
- Reliance on a network connection, which may be slower, less stable, less secure
- ## Allows employees to view data from remote locations is potentially vulnerable to abuse and infiltration
company-owned computing incurs three times the cost of hiring cloud services (Azure, Google Cloud, and AWS
What is cloudbursting?
expanding capacity during periods of spiking demand
What are black swans?
events that cannot be predicted but can cause an impact.
Challenges with the Cloud
Thorough financial analysis needed before entering
with cloud computing, firms started spending less on servers and shifting to cloud computing
server farm
place where a lot of servers are kept–usually in cheap land, low-cost power, mild climate, ultrafast fiber-optic connections; where hardwares for servers are formed to process big data and process cloud computing.
Microsoft Data Center in Middenmeer, Holland
virtualization
allows a single computer or cluster of connected computers to function as if it were several different computers; done on a private cloud
advantages: reduce an organization’s hardware needs, create a firm’s own private cloud of scalable assets, vut energy consumption and lower carbon footprint
packaged software vs apps
having apps lower the cost of software distributions and maintenance. they offer a richer user interface and integrate more tightly with a device’s OS.
