Complete Comparison Of SDLC vs Agile In 2023

SDLC vs Agile

Comparison Of SDLC vs Agile  will be explained in this post. The SDLC (Software Development Life Cycle) is a methodology used in the development of software and systems in information technology organisations. The SDLC framework provides a description of a number of software development procedures. Software Development Life Cycle (SDLC) is also known as Application Development Life Cycle (ADDLC) (SDLC).

Complete Comparison Of SDLC vs Agile In 2023

In this article, you can know about Complete Comparison Of SDLC vs Agile In 2023 here are the details below;

The phases of the software product life cycle are planning, research, design, implementation, & maintenance. The software product life cycle process can be used to define the scope and lifetime process of hardware or software components or configurations. Customers receive efficient and premium hardware or software thanks to the SDLC.

The businesses will operate efficiently as a result. Agile is a methodology for implementing the Software Development Life Cycle (SDLC), which is a project management procedure. Agile software development is an approach to the software development lifecycle process in which the demands and solutions of numerous cross-functional teams as well as the end users, customers, or clients are met through cooperative effort.

It enables quick changes, quick development, ongoing project deliverables, and ongoing project enhancements. The Agile Manifesto was first drafted in 2001. After being developed initially as a formal method, agile was eventually embraced.

What Is SDLC?

What Is SDLC

The SDLC stands for the Software Development Life Cycle. When creating software, certain procedures must be followed. Every software development company follows the software development life cycle (SDLC). Many steps make up the SDLC. The issue is recognised with a basic understanding at the planning phase. During this stage, hazards, technical difficulties, available resources, and development efforts are all identified for the project. Collecting and analysing requirements is the first step in the requirement phase.

Customer feedback, talks with senior managers, and information on sales and marketing are all part of requirement collection. The requirements should be well documented. This document is known as the Software Requirement Specification (SRS). It contains the requirements for the item that needs to be produced during the project. The software’s design is based on the SRS. Several design approaches for the product architecture are suggested and listed in a design document specification (DDS). This phase involves designing all of the architectural modules, the data flow representation with external modules, etc.

The project is carried out using the proper programming language. Debuggers, code editors, compilers, and interpreters are just a few of the programming tools that can be used to create and test the programmes. The choice of programming language may be influenced by the application. The unit testing of the developed module is included in this step. Testing is the process of confirming and validating that a software programme operates as anticipated. It is used to assess whether the project’s completion conforms to the necessary requirements. System testing, integration testing, etc. are all examples of testing.

Integration is the process of conducting testing between two modules. During system testing, the complete project is tested. Visit Mindmajix – A Worldwide Online Training Platform: “Agile Training” to learn how to become an Agile Certified Specialist. You can excel in this field with the help of this course.

Benefits of SDLC

  • When the SDLC cycle is used in a software development environment, the following advantages are gained:
  • This model is one of the simplest, most popular, most manageable ones.
  • Because of the project’s nature, each phase has its own deliverables and evaluation process.
  • It works well for small to medium-sized projects with clearly stated and understandable needs.
  • Planning and execution happen in opposition to one another (forward and backwards).
  • The process and results are extensively documented.
  • The SDLC meticulously documents all steps, activities, and results.
  • The Software Requirement Specification document contains enough information for the Software Testers to create and simulate test cases and scenarios during the software testing phase.
  • As a result, testing is much easier and more apparent thanks to the SDLC methodology.

Limitations of SDLC

Limitations of SDLC

  • The following is a list of some disadvantages associated with utilising the SDLC in software development:
  • This is not the greatest paradigm for a major, involved, and ongoing effort.
  • It is less efficient if the initial requirement is unclear.
  • Making changes in the earliest phases is quite difficult.
  • Testing begins once development is complete.
  • As a result, it is likely that problems may be discovered later on in the development process that will cost money to fix.
  • This paradigm does not allow for much flexibility, not even during the development period.
  • This paradigm does not allow for much flexibility, not even during the development period.
  • Because testing is frequently delayed until it is finished, large updates can incur additional costs.
  • Since issues might not be identified until the project is nearly complete, we face a large risk of uncertainty and risk.

What is Agile?

What is Agile

Throughout the software development process, a life cycle model for software development should be used. These models are mentioned in the software development process model. Each process follows a set number of stages that are unique to it in order to successfully complete the software project. Examples of SDLC models include the waterfall model, iterative model, spiral model, v model, prototype model, and rapid application development. Agile methodology is a component of the SDLC model. It combines the iterative and incremental process approaches.

This model helps with adapting to changing requirements. According to this concept, the project is divided into various sections. Suppose that the project is broken up into modules that are A, B, and C in size. The first module A covers planning, requirement gathering and analysis, designing, implementing, and testing. The B module starts after it is complete. It goes through the same phase as module A. Before Module C starts, Module B is finished. At the end of the iteration, the client may get a working module.

Benefits of Agile

Benefits of Agile

  • Under the traditional waterfall paradigm, the criteria cannot be changed once they have been set.
  • Agile, however, allows for changes to the requirements.
  • Now, the developer and the client collaborate more regularly.
  • Teamwork is improved, and the project is simpler to manage.
  • Because of its adaptability and flexibility, agile is a popular SDLC methodology overall.
  • It might not be ideal for a challenging assignment.
  • Other drawbacks include the requirement for an agile project manager and the customer’s ongoing capacity to change the project’s requirements.

Limitations of Agile

  • This is a list of the benefits of using the Agile development approach.
  • This approach to software development is quite useful.
  • Cross-training and teamwork are encouraged.
  • Quick development and capability demonstration are possible.
  • There is a minimum requirement for resources.
  • Addressing a range of fixed and variable needs
  • Offers incompletely functional solutions as quickly as possible.
  • A paradigm that functions effectively in changing environments.
  • Planning is not required at all.
  • Agile’s Restrictions
  • This is a list of the Agile model’s drawbacks.
  • Complex dependencies cannot be handled using this strategy.
  • All three are in grave danger: sustainability, maintainability, and extensibility.
  • A thorough plan, an agile leader, and an agile PM technique are necessary for success.
  • A rigorous delivery management process is used to determine the scope, functionality, and adjustments required to achieve deadlines.
  • The team could be guided in the incorrect direction if the customer is unclear.
  • Due to a severe lack of documentation, there is a very high level of individual dependence.
  • Due to a lack of documentation, it could be difficult to train new team members how to utilise the technology.

Difference between Agile and SDLC

Difference between Agile and SDLC

  • There are several differences between the agile and SDLC software development life cycles.
  • There are numerous varieties.
  • Methodology: SDLC follows a path where no stage can be skipped, whereas agile developers can change their path in accordance with the tasks that the scrum masters provide them.
  • Whereas SDLC has numerous phases with varying lengths, Timing Agile users make use of the time provided to their sprints.
  • Changes: While utilising agile development techniques, developers are free to make modifications following the initial release of their work after obtaining feedback from a variety of stakeholders, such as scrum masters, customers, and project owners.
  • In contrast, the SDLC prohibits changes made after the final product has been released.
  • Testing: While using the SDLC, testing is only done once development is complete. However, when using agile, testing can be done at different phases of the development process.
  • User focus: While agile prioritises users through user stories and testing, the SDLC prioritises users.
  • Budget: The organisation pays a lot of money while adopting the SDLC since testing is done at the end of the project, whereas Agile consumes less money because testing is done more regularly.
  • Project size: In contrast to agile, which focuses on releasing projects to the market more quickly, the SDLC is effective for the majority of projects, regardless of size.
  • Flexibility: Depending on the SDLC approach you choose, Agile allows for team-wide flexibility, whereas SDLC does not.

Key Difference between SDLC and Agile

While SDLC (Software Development Life Cycle) is the process that is being followed for the design and development of a product or service to be delivered to the customer in organisations that specialise in information technology or hardware, Agile is a method that can be implemented by utilizing Scrum framework for the purpose of the assignment management process.

The SDLC can be modelled in a variety of ways, such as the Waterfall model, the Agile model, the Iterative or Incremental model, the Spiral model, the Rapid Application Development (RAD) model, the V-Shaped model, and the Evolutionary prototype model.

In addition to including a set of best engineering practises and standards, agile increases predictability, lowers failure rates, and improves the quality of projects that are delivered, all of which help organisations save money.

Depending on the technical or business understanding of the individual, the SDLC contains HLD (High-Level Design) and LLD (Low-Level Design), which are used to analyse and explain the project to various team members and clients.

The Agile model, in comparison, has a number of steps, such as planning, analysis, requirements, design, coding, unit testing, system integration testing, non-functional testing, and acceptance testing.

SDLC will be easy to know or glance at in order to rapidly comprehend the project, but Agile is simpler and easier to grasp, adopt, and implement.

Agile is easier to manage and more flexible for developers and the entire team than SDLC, which has a number of models and depends on each model to handle the project’s many sections.  While the Agile Manifesto identifies up to 12 different principles, the SDLC outlines all the stages that must be performed to properly complete a project, as well as its maintenance and support.

SDLC offers a logical technique to generating software towards successful product deliveries within the timetables, but Agile has a quicker development strategy and speeds the development approach in an effective and efficient way.

While Agile provides a continuous integration and continuous delivery model by delivering small changes in applications based on the requirements with frequent deliverables as per the dynamic requirement changes, SDLC contains documentation that will be thoroughly documented at each stage to ensure clear progress visibility.

SDLC vs. Agile Questions

Which SDLC technique do you use?

Software Development Life Cycle, or SDLC for brief, is a process used in software engineering to direct the creation of software products.

It consists of steps including planning, analysis, design, implementation, testing, deployment, and maintenance.

Agile is an SDLC, right?

Agile is a style of SDLC that places a significant emphasis on collaboration, flexibility, and customer happiness while delivering working software in small, frequent releases.

What three benefits come with using agile methods?

More flexibility, better collaboration, and quicker delivery of functional software are all benefits of agile methodologies.

Which Agile methodology is the best?

The most prominent agile technique is Scrum, although there are others, including Kanban, Lean, and XP, and the choice is based on the particular requirements of the project and organisation.

SDLC: Is it a decent career path?

Absolutely, having knowledge of and experience with the SDLC can be advantageous for a job in software development or other similar professions. This is due to the fact that it aids with project planning and execution, communication, quality assurance, and is an important skill to have on a CV.

6. How stressful is SDLC?

Depending on the project and the individual, the SDLC can be stressful, but good planning, communication, and problem-solving can assist.

Why is Agile the best SDLC model?

Due to its adaptability, customer happiness, cooperation, continuous improvement, and quicker time-to-market, agile is regarded as the finest model in the SDLC.

What part does Agile play in this process?

By offering a structure for managing complicated projects and producing high-quality software that satisfies customer needs, agile plays a crucial role in the software development process.

The product owner, scrum master, & development team are the primary positions in Agile, and they collaborate to provide excellent communication, teamwork, and continual progress.

Is learning Agile simple?

Due to its simple ideas and methods, agile is typically thought to be relatively simple to learn, but becoming an expert and successfully implementing it in complex projects may require more time and expertise.

There are a digit of resources available to assist teams and individuals in learning and implementing Agile methods more quickly.


As SDLC is a process, Agile is a technique, hence when SDLC incorporates various methodologies, of which Agile is one, both SDLC and Agile must be taken into account.

Agile, Waterfall, the Unified model, the V model, and the Spiral model are only a few of the several SDLC methodologies.

The STLC, also known as the Software Testing Life Cycle, can apply the same methodology depending on the project’s requirements and size.

The agile paradigm primarily helps smaller projects produce high-quality projects rapidly and affordably.

Compared to other methodologies, Agile has multiple phases, whereas SDLC includes multiple phases that might vary based on the methodology.

The methodology utilised depends on the project’s requirements, team size, complexity, and scale.

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