SYSTEM ANALYSIS AND DESIGN

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SYSTEM ANALYSIS AND DESIGN 

The System is a word derived from the Greek word 'Systema' which means an organized relationship among components.

An Information system is an arrangement of people, data, processes, information presentation and information technology that interacts to support and improve day to day operations in business as well as support the problem solving and decision making needs of management and users.

DEVELOPMENT OF A SUCCESSFUL SYSTEM  
The success of any depends on the approach of building it. If the development approach is right,  the system will work successfully.

System Development Life Cycle
 SDLC is a standard methodology for the development of an Information System.it mainly consists of four phases:
  1. System Analysis,
  2. System Design,
  3. System Construction & Implementation,
  4. System Support.
every phase consists of input, tasks and outputs.

System Development Life Cycle
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Preliminary Investigation
↓
Determination of system requirements
↓
Design of system
↓
Development of  software
↓
System testing 
↓
Implementation & evaluation
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