ch8 Flashcards
what the design phase decide
how the new system will operate
what is system design
is the determination of overall system architecture consisting of set of physical processing components hardware software people and communication among them that will satisfy the system essential
how the analysis phase communicate with the design phase
through usecase and logical process and data models and system requiarments
the way the team choose is influnces the team tasks
true or false
true
the nonfunctional requirements influence the system requirements that drive the design of the system architecture what is that mean
how the system will operational
document in hardware and software specification
which is document that describes what hardare and software are needed to support the new application
who is has respontbitlity of the actual acquisition of hardware and software
purchasing department
where is data component described
in the logical data model
what is the finial delvirable for the design phase
the system specifications
how we can build a system
custom application
packaged system and customize it
rely on external developer
what is the adv of the custom development
teams have complete control over the way the system looks and functions
also make developers flexible and creative in the way they solve the problems
what is the disadv of custom development
take long hours hardwork many companies huge developers facing huge backlogs of system requasts unexpected delay the business users may become impatient with growing timeline
what is the adv of the packeged enterprise
more eficient because iit tested and created and installed
what is the disadv of the packaged software
rarely is there are perfect fit
installing software is much more difficult
what is workaround
is a custom-built add program that interfaces with packaged applications to handle special needs
what is the key challange in systems integration
is finding ways to ingrate the data produced by the different packages
what is called outsourcing firms
called application service providers
who is the ASP
makes it avilable to the customer via a wide network or installed on the clint
what is the saas
is a popular term that is essentially an extension of the asb model
what the adv of outsourcing
is low cost of entry
and extremely setup time
they pay as you go
investment in it can be reduced
the investment in infrastructure is avoided
‘outsourcing firms will develop a custom system on behalf of the customer
when you use the outsourcing appproach what should you do
you should consider the time and the requirements
and the price is fixed in contract
if is the problem is common
it be good to use packaged software
if it is unique problem
we use custom devlopment and with the help of the outsourcing firm
in house expperience
it easier to build acustom aplication if the skills exist
the packaged is better if the nno technical skills
outsourcing is the way to bring the outside experience
project mangment
project mangment would be easy if empolyee in the firm because de will accept any changes
but if he outsourcer he can say no
time frame
if time is short is good to use packaged software
and may be use outsourcing but it depend in the volume of the project and the outsourcer
