Agile System Development Life Cycle (SDLC)

SDLC- It means software development life cycle. 

'Agile method' works fast in comparison to  'raid method' .The given task is completed within 90 days, it is a team which work on software development life cycle.It work like rapid action force, performs the task r complete the project in very short duration.

Eg:Extreme Programming(a agile method).

http://www.esnips.com/_t_/extreme%20programming?m=0&q=extreme%20programming 

if you want the details of agile sdlc then visit this link - http://www.ambysoft.com/essays/agileLifecycle.html

There are five phases  in software development:-

1.Requirement analysis and specification

3.Design

4.Coding

5.Testing

6.Maintenace.

The First Phase is  "Requirement Analysis" -  It is first phase of SDLC. This process is also known as feasibility study.In this phase we read customer's all requirement carefully and apply them.

In this phase not only we read the requirements and apply them but a thorough analysis is also required for the requirements, whether the requirements are possible or not based on the availability of resources .As well as the analysis is also required that how much time it would  take or what would be the cost.How to manage the resources we do have, the development already done before regarding that requirement , if done then how to reuse that.we can say if the analysis is done properly then it saves precious time as well as cost:).
So Frenz it is very important to analyse the requirements first in a very effective way and then to jump on design and development.

Second Phase is "Designing":- In this phase developer/designer will design all requirements as per customers/end user.

Yes , in this phase an architecture of the what is required is designed.The flow is designed.For example if it is a web application, it is designed on which action , request send to d server etc n when and how would be the response.what would be shown to the end users.What would be tasks performed in the different layers..that could be any presentation, logic , data....

Third Phase will come "Coding":-  We can also says that implementation part. After completion of designing the coding will come This part is always done by developer. In this phase developer will develop the application.

If the analysis and the design is proper then the implementation becomes damn easy.....

Fourth phase would become "Testing":- After completed implementation/coding  ,Tester will test the whole applications as per customer requirements and he will try to satisfied or fulfill as per customers requirements.

In this phase , tester should be the enemy of developer then only the application would be the best application.The tester should go through the requirements and his act should be like, anything the developer says is wrong.And the developer should be able to prove that he is right, then only a team can assure for a best software.

SDLC's fourth phase is the heart or prestige of companies.It's also known as companies right hand side.

The last and Fifth phase of SDLC is "Maintenance":- This phase is also known as User Acceptance Testing (UAT).
This is always done by the customer or end user or client.
Customer will check that his all requirements are fulfill or not application is working successfully or not.

This whole cycle is known as Software Development Life Cycle.