System are created to solve problems.One can think of the systems approach as an organised way of dealing with a problem. In this dynamic world ,the the subject system analysis and design ,mainly deals with the software development activities.
System
A collection of components that work together to realize objective forms of a system .
Basically there are three major component in every system ,namely Input,processing and output .
INPUT--->[PROCESSING]------>OUTPUT
In a system ,the different components are connected with each other and they are interdependent . e.g.,human nbody represents a complete natural system .we are also bound by stystem .
System Life Cycle
System life cycle is an organisational process of developing and maintaining a system .
It helps in estabilishing a system project plan, because it gives overall list of processes and sub processes required developing a system .
In other words, we can say that various activities put together are referred as system development life cycle.
In this analysis and design terminology ,the system development life cycle means software development life cycle.
Following are the different phases of software development cycle
- System study
- Feasibility study
- System analysis
- Coding
- Testing
- Implementing
- Maintenance
The different phases of SDLC (software development life cycle)
------ >> System Study <<--------
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Maintainance Fasibility Study
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Implementation Software devlopment System Analysis
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Testing System Design
LIFE Cycle
------>> Coding <<--------
Different Phases of Software Development Life Cycle
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