CHAPTER 1 Flashcards

1
Q

Information systems analysis and design

A

The process of developing and
maintaining an information
system.

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2
Q

Application software

A
Software designed to process
data and support users in an
organization. Examples include
spreadsheets, word processors,
and database management
systems.
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3
Q

System

A
A group of interrelated
procedures used for a business
function, with an identifiable
boundary, working together
for some purpose.
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4
Q

Component

A

An irreducible part or
aggregation of parts that makes
up a system; also called
a subsystem.

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5
Q

Interrelated

A

Dependence of one part of the
system on one or more other
system parts.

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6
Q

Boundary

A

The line that marks the inside
and outside of a system and that
sets off the system from its
environment.

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7
Q

Purpose

A

The overall goal or function

of a system.

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8
Q

Environment

A

Everything external to a system

that interacts with the system.

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9
Q

Interface

A

Point of contact where a system
meets its environment or where
subsystems meet each other.

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10
Q

Constraint

A

A limit to what a system can

accomplish.

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11
Q

Decomposition

A
The process of breaking the
description of a system down
into small components; also
known as functional
decomposition.
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12
Q

Modularity

A

Dividing a system up into chunks
or modules of a relatively
uniform size.

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13
Q

Coupling

A

The extent to which subsystems

depend on each other.

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14
Q

Cohesion

A

The extent to which a system or
subsystem performs a single
function.

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15
Q

Systems analyst

A

The organizational role most
responsible for the analysis and
design of information systems.

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16
Q

Systems development

methodology

A
A standard process followed in
an organization to conduct all
the steps necessary to analyze,
design, implement, and maintain
information systems.
17
Q

Systems development life

cycle (SDLC)

A

The series of steps used to mark
the phases of development for an
information system.

18
Q

Systems planning

and selection

A
The first phase of the SDLC, in
which an organization’s total
information system needs are
analyzed and arranged, and in
which a potential information
systems project is identified and
an argument for continuing or not
continuing with the project is
presented.
19
Q

Systems analysis

A

Phase of the SDLC in which the
current system is studied and
alternative replacement systems
are proposed.

20
Q

Systems design

A
Phase of the SDLC in which the
system chosen for development
in systems analysis is first
described independently of any
computer platform, (logical
design) and is then transformed
into technology-specific details
(physical design) from which all
programming and system
construction can be
accomplished.
21
Q

Systems implementation

and operation

A
Final phase of the SDLC, in
which the information system is
coded, tested, and installed in
the organization, and in which
the information system is
systematically repaired and
improved.
22
Q

Prototyping

A

Building a scaled-down version
of the desired information
system.

23
Q

Computer-aided
software engineering
(CASE)

A

Software tools that provide
automated support for some
portion of the systems
development process.

24
Q

Repository

A
A centralized database that
contains all diagrams, forms and
report definitions, data structures,
data definitions, process flows
and logic, and definitions of
other organizational and system
components; it provides a set of
mechanisms and structures to
achieve seamless data-to-tool
and data-to-data integration.
25
Q

Joint application design

JAD

A
A structured process in which
users, managers, and analysts
work together for several days in
a series of intensive meetings to
specify or review system
requirements.
26
Q

Rapid application

development (RAD)

A
Systems development
methodology created to radically
decrease the time needed to
design and implement
information systems.
27
Q

Participatory design (PD)

A
A systems development
approach that originated in
northern Europe, in which users
and the improvement of their
work lives are the central focus.
28
Q

Agile Methodologies

A
A family of development
methodologies characterized by
short iterative cycles and
extensive testing; active
involvement of users for
establishing, prioritizing, and
verifying requirements; and a
focus on small teams of talented,
experienced programmers.