It460-01Au: Systems Analysis And Design

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Application Software

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consists of programs that support day-to-day business functions and provide users with the information they require.

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Computer-aided systems engineering (CASE TOOLS)

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a technique that uses powerful software used to help systems analysts develop and maintain information systems.

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Data

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the raw material that an information system transforms into useful information.

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Diagramming software

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consists of computer programs that are used to produce graphical diagrams. As computer users seek to represent visual information, such as a flowchart, tools such as Schematic, SmartDraw, Dia, OmniGraffle, Microsoft Visio, Inspiration, ConceptDraw 7, allow them to express the information in the form of a diagram.

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Hardware

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consists of everything in the physical layer of the information system.

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Information technology

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refers to the combination of hardware and software products and services that people use to manage, access, communicate, and share information.

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Mission-critical system

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one that is vital to a company’s operations.

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Modeling

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produces a graphical representation of a concept or process that systems developers can analyze, test, and modify.

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Object Oriented Analysis

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a software engineering approach that models a system as a group of interacting objects. Each object represents some entity of interest in the system being modeled, and is characterised by its class, its state (data elements), and its behavior.

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Processes

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the tasks and business functions that users, managers, and IT staff members perform to achieve specific results.

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Prototype

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an early working version of an information system

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Software

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refers to the programs that control the hardware and produce the desired information or results.

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System

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a set of related components that produces specific results.

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System Analyst

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individual responsible for planning, developing, and maintaining information systems

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System Software

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manages the hardware components, which can include a single workstation or a global network with many thousands of clients.

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Systems Development Life Cycle (SDLC).

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Structured analysis is a traditional systems development technique that is time-tested and easy to understand. Structured analysis uses a series of phases,thousands of clients

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Systems analysis and design

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a step-by-step process for developing high-quality information systems.

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Vector Graphics.

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the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based upon mathematical equations, to represent images in computer graphics.