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38 Cards in this Set

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Information system

a set of interrelated components that collect, process, store, and provide as output the information needed to complete business tasks.

I.S. a s o i c t c, p, s, a p a o t i n t c b t.

Computer Application

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

C.A. a c s p t e o a c d t c o a s f o s o r f.

Systems analysis

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

S.A. t s d a t e a p t u a s w t n s s a.

System design

those system development activities that enable a person to describe in detail how the resulting information system will actually be implemented.

S.D. t s d a t e a p t d i d h t r i s w a b i.

Project

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

A p u t h a b a a e a p s e r.

System development life cycle (SDLC)

a framework that identifies all the activities required to research, build, deploy, and often maintain an information system.

a F t I a t A R t R, B, D, a O M a I S.

System development process or methodology

a set of comprehensive guidelines for carrying out all of the activities of each core process of the SDLC.

a S o C G f C O a o t A o e C P o t SDLC.

Agile development

a information system development process that emphasizes flexibility and Rapid Response to anticipate new and changing requirements during development.

a I S D P t E F a R R t A N a C R D D.

Iterative development

an approach to system development in which the system is "grown" piece-by-piece through multiple mini projects called iterations.

a A t S D i w t S i G P b P T M M P C I.

Subsystem

an identifiable and fully functional part of a complete system.

a I a F F P o a C S.

Technology architecture

a set of computing hardware, network hardware karma network hardware and topology, and system software employed by an organisation.

a S o C H,

Application architecture

the set of information systems (the software applications) the organisation needs to support it's strategic plan.

System requirements

all the activities the new system must perform or support and constraints that the new system must meet (functional + non-functional)

Functional requirements

the activities for sister must perform just for the uses' work.

Non functional requirements

required system characteristics other than the activities it must perform or support.

FURPS

an acronym that stands for functional, usability, reliability, performance, and security requirements.

Usability requirements

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

Reliability requirements

the requirements that describe system dependability.

Performance requirements

The requirements to describe operational characteristics related to measures of workload, such as throughput and response time.

Security requirements

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

FURPS+

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

Stakeholders

Person to have an interest in the successful implementation of the system.

Internal stakeholders

Persons within the organisation who interact with the system or have a significant interest in its operation or success.

External stakeholders

Persons outside the organisations 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 the 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

A person or group that provides the funding for the systems development project.

Open ended questions

Questions that encourage discussion or explanation.

Closed ended questions

Questions that elicit specific facts.

Model

Representation or extraction of some aspect of a system.

Textural models

Text based system models such as memos, reports, narratives, and lists.

Graphical models

System models that use pictures and other graphical elements to create a diagram.

Mathematical models

System models that describes requirements numerically or as mathematical expressions.

Unified modelling language (UML)

A standard set of information system models constructs and notations defined by the Object Management Group.

Workflow

A sequence of work steps that completely handle one business transaction or customer request.

Activity diagram

A (UML) diagram that describes user (or system) activities, the person or component the complete each activity, and the sequential flow of these activities.

Synchronisation bar

Activity diagram component that either splits a control path into multiple concurrent paths or recombines concurrent parts.

Swimlane

An activity diagram component that divides the workflow activities into groups showing which agent performs which activity.