SDLC ?

[aparna3032]

SOFTWARE DEVELOPMENT LIFE CYCLE


Friends I want to have good Knowledge about SDLC(Software Development Life Cycle) in eazy steps . Please HELP Me.


What is an SDLC ?


How many Phases does SDLC consists Of ?


If you know any website from where we can good Knowledge about SDLC,Please Post the address of the website Here.It will be Useful for every body.








Best Regards.


Aparna.

[meera]

DEFINITION: System Development Life Cycle (SDLC) is the overall process of developing information systems through a multistep process from investigation of initial requirements through analysis, design, implementation and maintenance. There are many different models and methodologies, but each generally consists of a series of defined steps or stages.


Once upon a time, software development consisted of a programmer writing code to solve a problem or automate a procedure. Nowadays, systems are so big and complex that teams of architects, analysts, programmers, testers and users must work together to create the millions of lines of custom-written code that drive our enterprises.


To manage this, a number of system development life cycle (SDLC) models have been created: waterfall, fountain, spiral, build and fix, rapid prototyping, incremental, and synchronize and stabilize.


The oldest of these, and the best known, is the waterfall: a sequence of stages in which the output of each stage becomes the input for the next. These stages can be characterized and divided up in different ways, including the following:

• Project planning, feasibility study: Establishes a high-level view of the intended project and determines its goals.
  
  
  
  
• Systems analysis, requirements definition: Refines project goals into defined functions and operation of the intended application. Analyzes end-user information needs.
  
  
  
  
• Systems design: Describes desired features and operations in detail, including screen layouts, business rules, process diagrams, pseudocode and other documentation.
  
  
  
  
• Implementation: The real code is written here.
  
  
  
  
• Integration and testing: Brings all the pieces together into a special testing environment, then checks for errors, bugs and interoperability.
  
  
  
  
• Acceptance, installation, deployment: The final stage of initial development, where the software is put into production and runs actual business.
  
  
  
  
• Maintenance: What happens during the rest of the software's life: changes, correction, additions, moves to a different computing platform and more. This, the least glamorous and perhaps most important step of all, goes on seemingly forever.
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[aparna3032]

Thanks Meera ,Thank you very Much..for Posting the Answer for SDLC .





This will be Helpfull for every body...





Best Regards.