What is the Software Development Life Cycle (SDLC)? Explained

Process Advisors

*Subject to Terms and Condition
What is the Software Development Life Cycle (SDLC)
Updated on 13th Sep, 23 7.7 K Views

Companies are also looking for developers with knowledge in specific areas such as mobile, web, and cloud development. With the ever-evolving technology landscape, software developers are needed to create and maintain applications that are secure, efficient, and effective. Additionally, businesses are seeking developers who are familiar with specific development languages and frameworks.

Before moving further, quickly have a glimpse of what we are going to conquer.

Points to Ponder

If you want to know everything SDLC has to offer, do watch this Video

What is Software Development?

What is Software Development?

Software development can be defined as a process that involves the creation, design, development, testing, deployment, and maintenance of software applications. But wait, it is not restricted here. Software development also includes writing code and developing software tools and algorithms for the application.

The field also involves other activities like project management, UI/UX Design, and quality assurance. Due to all these factors, the rapid demand and growth of the software development sector don’t surprise anyone anymore.

Without a doubt, the demand for software development will continue to grow as technology advances and businesses continue to prioritize software development to stay competitive in their industries.

Now that you have got a gist of software development, let us figure out the next question that follows!

What is SDLC?

What is SDLC?

SDLC full form is Software Development Life Cycle. It is a process that is used by software developers to design and develop high-quality software. The process includes the following steps:

  • Planning/ Analysis: The first step in the Software Development Life Cycle (SDLC) is to plan and analyze the project. This includes defining the scope, understanding the customer’s requirements, and creating a project plan. During this phase, the team will also identify potential risks and create a timeline for project completion.
  • Analysis: This is the process of gathering requirements and understanding user needs.
  • Design: The design phase revolves around defining the architecture of the software and creating a detailed specification document. This phase also includes designing the user interface and flow of the application.
  • Development: This is the process of coding and testing the software.
  • Implementation: This is the phase where the actual coding of the software takes place. During this phase, the team will develop the code, debug it, and test it for functionality.
  • Testing: Once the code is written and debugged, it needs to be tested for accuracy and performance. During this phase, the team will use unit tests, integration tests, smoke tests, and user acceptance tests to ensure the software meets the customer’s requirements.
  • Deployment: After the software is tested and approved, it is ready to be deployed. This phase involves releasing the software to the customer and making it available to users.
  • Maintenance: This is the process of providing support and updating the software when needed.

Advance in Software Engineering with the help of the Software Engineering and Application Development Course!

Types of SDLC

We have mentioned some of the most commonly known types of SDLC below:

  • Waterfall Model:
Waterfall Model

The most traditional and basic type of Software Development Life Cycle is the Waterfall model.

It is a successive design process, in which one can observe progress flowing steadily downwards just like a waterfall.

The phases include Conception, Analysis, Initiation, Construction, Design, Production/Implementation, Testing, and Maintenance.

This model is quite inflexible and does not allow for much alteration once a phase has begun.

  • Agile Model:
Agile Model

Agile is a higher-level model that focuses on adaptive planning, rapid development and delivery, and continuous improvement. It breaks down the development process into small phases and emphasizes customer satisfaction by quickly delivering functional software.

Agile Methodology is an iterative, incremental method of software development. It follows an adaptive, iterative approach to software development, which is based on incremental and iterative development. This methodology is based on delivering working software in short cycles, which are termed ‘sprints’.

Get 100% Hike!

Master Most in Demand Skills Now !

In Agile, each sprint is a short period of time (usually two to four weeks) during which a team works on a specific set of features or tasks. The goal of each sprint is to produce a working version of the software, which can be tested and evaluated for further improvements.

Agile emphasizes customer and user involvement throughout the development process. It encourages collaboration between the development and user teams, enabling the product to be designed and developed collaboratively. Agile also encourages continuous improvement, which is achieved through frequent feedback from customers and users.

Get ready for your interview by going through our Software Engineering Interview Questions blog.

  • Iterative Model:
Iterative Model

The Iterative Model is a model where the development process is divided into multiple cycles or iterations. At each iteration, the requirements are analyzed, designed, and coded. The feedback from the previous iteration is used to modify the project.

This model is used when the requirements of the end product are not well understood or are expected to change over time.

The Iterative Model is a cyclical software development process that repeats the development cycle multiple times until the desired result is achieved. This is different from the Waterfall Model which is a linear approach to software development with a set of defined steps.

The Iterative Model has four general phases: 

  • Planning: The project team develops a plan for the project. This includes defining the objectives and scope of the project, as well as determining the resources and timeline.
  • Design: In this phase, the project team designs the architecture and user interface of the software.
  • Build: The project team builds the software according to the specifications determined in the previous phase.
  • Test: The project team tests the software to ensure that it meets the requirements.

The Iterative Model allows for a more flexible approach to software development as it allows for changes and updates as needed.

  • Spiral Model:
Spiral Model

The Spiral Model is a model that combines the features of both the waterfall model and the iterative model. It allows for incremental development of a product, which allows for early delivery of a working software product.

The Spiral Model is based on the concept of incremental development, where each iteration builds on the work from the previous one. At each iteration, the project team evaluates the progress, identifies and mitigates risks, and makes changes as needed. The process continues until the project is complete.

We have covered half of the journey by now, but did this question: What is the importance of SDLC? cross your mind. If yes, then the answer to your question is right below:

Also, check out the blog on types of software testing.

Importance of SDLC

SDLC is important because it provides a framework for developing quality software applications in a timely and cost-effective manner.

It also helps to ensure that the application meets the user’s needs and requirements. By adhering to it organizations can reduce their risks and gain visibility into the development process.

Organizations frequently use the System Development Life Cycle to create and maintain software applications and other associated systems. Planning, designing, creating, testing, and deploying software applications is a systematic process. 

Some of the benefits of SDLC are:

  • It improves quality

The process helps to ensure that the product meets the customer’s requirements and is of high quality. It includes thorough testing at each stage of the development process to identify and fix errors before the product is released.

  • Reduces costs

Following the process helps to reduce costs in the long-term. By identifying and fixing problems during the development process itself, companies are able to avoid the costs associated with fixing issues after the product is released.

  • Improves productivity

The process helps to ensure that the project is completed in a timely manner. It helps to streamline the development process and ensure that each stage is completed efficiently.

  • Improves communication

This method promotes communication among various teams and departments. It is easier to make sure that everyone is on the same page and that any concerns are dealt with promptly by holding regular meetings and evaluations.

Certification in Full Stack Web Development


Software development is an ever-evolving field, and its future is sure to be bright. With the increasing demand for software and the emergence of new technologies, the future of software development is sure to be an exciting one.

Software developers will have to stay on top of the latest trends and technologies in order to remain competitive.

Some of the technologies that are likely to shape the future of software development are Artificial Intelligence (AI), Machine Learning (ML), the Internet of Things (IoT), blockchain, and quantum computing.

These technologies will be used to create more intelligent and efficient software, and they will open up new opportunities for software developers.

Additionally, software development processes will continue to become more agile, with an increased focus on collaboration and speed.

If you are stuck on any question or have any doubts, do feel free to reach out at Intellipaat Software Community to get the solutions to your queries!

Course Schedule

Name Date Details
Web Development Courses 30 Sep 2023(Sat-Sun) Weekend Batch
View Details
Web Development Courses 07 Oct 2023(Sat-Sun) Weekend Batch
View Details
Web Development Courses 14 Oct 2023(Sat-Sun) Weekend Batch
View Details

Speak to our course Advisor Now !

Related Articles

Subscribe to our newsletter

Signup for our weekly newsletter to get the latest news, updates and amazing offers delivered directly in your inbox.