System Development Tools - created from Mind Map

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Techniques usedto plan, design and implement IS

Method

Modelling

Prototyping

Case-aided software engineering tools (CASE or CASES)

Produce graphical representation of a concept that system development use to develop, analyze, test & modify (BRODNP)

Bidness model

Rep Model

Object model

Data Model

Network Model

Process Model

Test system concept, provides oppurturnity to examine , input, output & UI before final decision are made

Benefit

Speeds up development process

Extremely valuable tool

Important decision might be done early before business or IT analyst understood

a TECHNIQUE - uses powerful softwares to help system analyst to develop and maintain IS

Structured Analysis

Object Oriented analysis

Agile method

other dev methods

Uses a set of process models to describe a system graphically

Traditional Method

time tested

easy to understand

Phases

SDLC

Plan, design, analyze eg. Waterfall model

Combination of data and process = object

Are number of class

posses properties

Methods can change object properties

req specific behaviour of information from another object

attempt to develop system incrementally by building prototypes and adjusting to user req

Uses spiral method

J.A.D (Joint Application Developement)

R.A.D (Rapid Application Development)

Focuses on team based fact finding only 1 phase

Uses team composed user ,managers & IT Staff

Compressed version of entire process