Lecture 3 Flashcards
bespoke development
Information system
developed specifically for
the purpose
packaged implementation
Standard software is
installed with limited
configuration required
hosted solution
Standard software that is
managed externally on the
supplier’s server
applications service provider (ASP)
A software supplier that
offers hosted solutions to a
range of customers
software or webservices
Information management
facilities are accessed from
an external provider – the
software is not installed
within the company
application hosting provider (AHP)
Service for hosting an
organization’s application
separately
utility computing
IT resources and in
particular software and
hardware are utilized on a
pay-per-use basis
tailored development
The standard solution
requires major
configuration or integration
of different modules
prototyping
An iterative process in
which web-site users
suggest modifications
before further prototypes
and the live version of the
site are developed
prototype
A preliminary version of
part or all of an
information system
reviewed by its users and
business sponsors
RAD (Rapid Application Development)
An approach to information
systems development that
includes incremental
development using
prototypes
initiation phase
The first phase of a
systems development
project. It establishes
project feasibility and
produces a plan
feasibility study
A report assessing the
viability of the system
systems analysis
Determination of
information system
requirements
systems design phase
Defines how the completed
system will operate
systems design
Defines the overall
structure of the system and
its inputs and outputs
module design
Defines operation of
individual subsystems
within the system
systems development phase
Creation of the system
through programming,
database management and
configuration
systems implementation
The new information
system is introduced into
the business
changeover
The method of migrating
users and data from the old
system to the new system
data migration
Transfer of data from old
systems to new systems
