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43 Cards in this Set

  • Front
  • Back

computer application (app)

a computer software program that executes on a
computing device to carry out a specific function or set of related functions

information system

a set of interrelated computer components that collects, processes, stores, and provides as output the information needed to complete business tasks

systems analysis

those activities that enable a person to understand and specify what the new system should accomplish

systems design

those activities that enable a person to define and describe in detail the system that solves the need

project

a planned undertaking that has a beginning and an end, and that produces some definite result

Systems Development Life Cycle (SDLC)

the entire process consisting of all the activities required to build, launch, and maintain an information system

information systems development process

the actual approach used to develop a particular information system

Agile Development

an information systems development process that emphasizes flexibility to anticipate new requirements during development

iterative development

an approach to system development in which the system is "grown" piece by piece through multiple iterations

subsystem

an identifiable and partitioned portion of an overall system

technology architecture

a set of computing hardware, network hardware and topology, and system software employed by
an organization

application architecture

the organization and construction of software resources to implement an organization’s information systems

system requirements

the activities a system must perform or support and the constraints that the system must meet

functional requirements

the activities that the system must perform

nonfunctional requirements

system characteristics other than the activities it must perform or support

FURPS


a requirements classification framework (acronym stands for functionality, usability, reliability, performance, and security)

FURPS+

an extension of FURPS that includes design constraints as well as implementation, interface, physical, and supportability requirements

usability requirements

operational characteristics related to users, such as the user interface, related work procedures, online help, and documentation

reliability requirements

requirements that describe system dependability

performance requirements

operational characteristics related to measures
of workload, such as throughput and response time

security requirements

requirements that describe how access to the application will be controlled and how data will be protected during storage and transmission

design constraints

restrictions to which the hardware and software must adhere

implementation requirements

constraints such as required programming
languages and tools, documentation method
and level of detail, and a specific communication
protocol for distributed components

interface requirements

required interactions among systems

physical requirements

characteristics of hardware such as size, weight, power consumption, and operating conditions

supportability requirements

how a system is installed, configured, monitored, and updated

model

representation of some aspect of a system

textual models

text-based system models such as memos, reports, narratives, and lists

graphical models

system models that use pictures and other graphical elements

mathematical models

system models that describes requirements numerically or as mathematical expressions

Unified Modeling Language (UML)

standard set of model constructs and notations
defined by the Object Management Group

stakeholders

persons who have an interest in the successful implementation of the system

internal stakeholders

persons within the organization who interact with the system or have a significant interest in its operation or success

external stakeholders

persons outside the organization’s control and influence who interact with the system or have a significant interest in its operation or success

operational stakeholders

persons who regularly interact with a system in the course of their jobs or lives

executive stakeholders

persons who don’t interact directly with the system but who either use information produced by the system or have a significant financial or other interest in its operation and success

client

person or group that provides the funding for a system development project

open-ended questions

questions that encourage discussion or explanation

closed-ended questions

questions that elicit specific facts

workflow

sequence of processing steps that completely handles one business transaction or customer request

activity diagram

describes user (or system) activities, the person who does each activity, and the sequential flow of these activities

synchronization bar

activity diagram component that either splits a control path into multiple concurrent paths or recombines concurrent paths

swimlane heading

activity diagram column containing all activities for a single agent or organizational unit