What is The (SDLC) Software Development Life Cycle? | What Is It & Why We Use It

What is The (SDLC) Software Development Life Cycle? | What Is It & Why We Use It.

Software developers have come up with different approaches to developing software, called Software Development Life Cycles. These are the main phases in this process:

  • Requirements analysis
  • Designing
  • Building
  • Testing
  • Deployment
  • Maintenance

Software developers use the SDLC to create quality software on time. Here’s how it works.

SDLC (Software Development Life Cycle)

The Requirements Analysis

The SDLC requirement analysis phase.

The Requirements Analysis phase involves researching the client or company’s needs and figuring out what they want their software to do. The result of this phase is a written document that specifies what the product will accomplish.

The Designing

The SDLC designing phase.

The designing phase is when the actual design of the product takes place. This includes defining what the software should accomplish and how it will do that. The designers also figure out how to make it work for its intended users and what kind of interface they want to include. Developers can use many different types of design patterns, like object-oriented or event-driven programming.

The Building

The SDLC building phase.

The building phase is where the software developer converts his design to code, which the computer understands. The computer then executes the instructions in the code.

The Testing

The SDLC testing phase.

The testing phase of the Software Development Life Cycle is designed to identify defects in the software. This helps ensure that the software is up to standard before it’s released onto the market. There are two main types of testing:

  • The functional test analyzes whether or not the features work as expected.
  • The nonfunctional test looks at performance, reliability, security, and usability.

Software developers often use automated tools to perform these tests. But sometimes, they will also do manual testing by using various methods, such as looking for bugs in the source code or running live tests on a prototype of the software.

Deployment and Maintenance

The SDLC deployment and maintenance final phase.
After the software has been developed and tested, it’s time to deploy it. This step is primarily for businesses who want to make their product available to customers.

Maintaining your software includes fixing bugs and security issues that may come up after deployment. To do this, you must know what caused the problem and then determine if it can be fixed or needs a new update. This can be done through testing or a list of possible causes to figure out the problem.

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