CH 7 Flashcards
what are the 2 methods of acquiring IT services
make or buy
now usually buy
when purchasing IS what types of software are there to decide between
general purpose software (independent of business process) ex. email , MS word - easier to implement
software/IS supports business process
ex. sage accounting, EPR SAP
what things should you consider when choosing and IST provider
fit or not
reputation
cost
upgrading and updating
what kind of question should you ask to determine if the product is a good fit or not
does software meet business needs?
to know, you need to try with your data
what kind of question should you ask to determine if the product has a good reputation or not
how long has this software package been on the market,
who have been using it,
what are the comments about the software package
what kind of question should you ask to determine if the product is a good cost or not
what is the total cost of ownership for suing software in the first five years
calculate TCO with
software, hardware, cust/install, training, maintenance, service fee
what kind of question should you ask to determine if the product is a good future investment (updating/upgrading)
what will the upgrading look like
how frequent the upgrading will be
will there be an upgrading cost, if yes, how much
what are 4 things to beware of for IST sourcing
compatibility
standard vs enterprise version
tangible vs intangible benefits
extensive vs little customization
what question should be asked to determine compatibility
will the new system work with the existing one
what is enterprise software
has more features
is more customizable
is more expensive
what is a tangible benefit
a benefit that is measurable (more clients processed)
what is an intangible benefit
a benefit that is not measurable like ease of use
what is a disadvantage of having a highly customizable system
can be difficult to maintain and upgrade
what is an advantages of have a system with little customization
easier to maintain and upgrade
should you have a standardized system or not?
if you are a global firm you probably need to have multiple languages/currencies supported, and multiple tax jusrisictions supported
what is an on premise software
you buy a software license and install the software on the orgs server
support maintain, and upgrade it in house
what is a cloud service or cloud computing
pay a subscription fee
available over the internet
no need to build or maintain infrastructure or software
vendor does everything (install, maintains, support, upgrade, cust)
what are the 3 types of cloud computing
IaaS (infrastructure as a service)
PaaS (platform as a service)
Saas (software as a service)
what is IaaS
provides on-demand access to computing resources such as servers, storage, networking, and virtualization
what is PaaS
delivers a framework for developers that they can build upon and use to create customized applications. All servers, storage, and networking can be managed by the enterprise or a third-party provider while the developers can maintain management of the applications.
what is SaaS
provides a complete software solution that you purchase on a pay-as-you-go basis from a cloud service provider.
what are benefits of cloud computing
no upfront large capitol investment
faster deployment
scale up or down as required
no need to maintain or upgrade
access the service or data from anywhere as long as there is internet
ability to handle peaks in processing
focusing management attention on core business
high availability across multiple data centers
better diaster recovery
what are potential concerns for cloud computing
loss of control
high dependence on network
difficulty of migrating from one cloud vendor to another
what is outsourcing
hire and external contractor to develop and/or operate an IS
what are some things you can outsource
software development
IT service outsource
(call center, support services, network support)
what are the levels of outsourcing scope
selective/partial
full
what is selective/partial outsourcing
usually for medium or large orgs - they only outsource part of a service but also have internal IT
what is full outsourcing
used by small orgs - outsourcing of all IST
can pay per visit/fix or have a monthly/annual service fee
what are some issues associated with outsourcing
service reqs outside scope
shadow IT
lower quality service
what should an outsourcing contract include
duration
start date and end date
payment
contact
service level agreement
what should be included in an SLA
availability and expected performance of the service
incident response time
problem resolution time
penalties for non-compliance
what is onshoring
using an outsourcing provider that is in the same country as your org
what is offshoring
when the IS function uses contractor services in a distant land
can give you substancial reduced labour costs
what certification should you be looking for in a software dev company
CMM level 5 (capability maturity model)
what is CMM level 5
developed by software engineering institute (SEI) 1984
advancing software engineerign metholodology by ensuring the software dev process is org, streamlined to deliver high quality with predictiable budjet and timeline
what does ISO 9001 specify (similar to CMM)
minimal acceptable quality level for software processes
what is the diffrence between CMM and ISO
cmm is more explicit in defning the means to be used to make processes more reliable and predictable
what are some challenges with outsourcing
blackswan events - covid 19
losing core knowlede/capabilities
intellectual property rights
political considerations
what is backsourcing
when a company takes back previously outsourced activities ,skills, assets and makes them in house
there can be partial or complete reversal
