Agile Software Development: 4 Values, 12 Principles, & 5 Phases

Relia Software

Relia Software

Cong Dinh

Relia Software


Agile is a software development approach that prioritizes flexibility, cooperation, and efficiency, enabling teams to effectively create high-quality solutions.

What Is Agile Software Development? | Relia Software

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The rapid advancement of technology in the contemporary era has compelled multinational software companies to operate within a dynamic and rapidly evolving environment. Hence, it is imperative for software development teams to employ a flexible and adaptive methodology for software development that is capable of accommodating evolving requirements and the rapid nature of software development. Agile Software Development is widely regarded as a highly effective option. This article provides a comprehensive analysis of the developmental process within the Agile mindset.

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What Is Agile Software Development?

Agile is a method of software development that emphasizes flexibility and pragmatic approaches to the final delivery of a project. Because it emphasizes the tidy delivery of discrete bits or parts of software rather than the full program, agile software development often necessitates a transformation in corporate culture. 

In the other words, Agile is a method of software development that emphasizes flexibility and pragmatic approaches to the final delivery of a project. Because it emphasizes the tidy delivery of discrete bits or parts of software rather than the full program, agile software development often necessitates a transformation in corporate culture. 

Agile has largely supplanted waterfall as the most popular development style in most firms, but it faces extinction at the hands of the increasingly popular DevOps.

Agile is a method of software development that emphasizes flexibility and pragmatic approaches to the final delivery of a project. (Source: Internet)

4 Values Of Agile Software Development

The Agile Manifesto was written by 17 software developers in 2001 when they met to discuss ideas related to lightweight software development. Although there has been discussion over whether the Manifesto has outlived its usefulness, the four values it specifies remain important to the Agile movement.

Individuals And Interactions Over Processes And Tools

The development process is driven by people, who then adapt to the needs of the business. They are the most crucial aspect of the development process and should be prioritized over all other factors. The team's ability to adjust and adapt to change, as well as its ability to satisfy client needs, would suffer if development is driven by processes or tools instead.

Working Software Over Comprehensive Documentation 

When the product was being developed and delivered before Agile, a lot of time was spent on documentation. The documented requirements were extensive, which would lead to significant delays in the development process. Agile does not do away with documentation altogether, but rather simplifies it by giving the developer only the details he or she needs to complete the task at hand, such as user stories. Although the documentation process is still important, the delivery of working software is emphasized more in the Agile Manifesto.

Customer Collaboration Over Contract Negotiation 

With Agile, the customer and the project manager work together to determine the details of the delivery, rather than the two parties negotiating for a mutually agreeable solution. Collaboration with the client ensures that they are involved in every step of the development process, not just the beginning and conclusion, which makes it easier for teams to deliver on their promises. In Agile, for instance, the client can be brought in for product demonstrations at several stages of the process. To make sure the final result is exactly what they wanted, customers can be involved in the process every step of the way by being present and interact with the team and participating in daily meetings.

Responding To Change Over Following A Plan

The cost of adapting to new circumstances has historically been seen as a deterrent in traditional software development. Thankfully, this is not a consideration with Agile. Agile's short iterations make adjustments simple, letting the team shape the methodology to their needs rather than the other way around. As a whole, Agile software development is predicated on the idea that there is always room for improvement and new value can be added through the introduction of new ideas and methods.

12 Principles Of Agile Software Development 

1. Satisfy Customers Through Early and Continuous Delivery

“our highest priority is to satisfy the customer through early and continuous delivery of valuable software", as stated in the original formulation of the first of the Agile principles. Consistent and early delivery improves the odds of satisfying customers and generating a quicker return on investment.

2. Welcome Changing Requirements Even Late in the Project 

Late-stage adjustments are typically viewed with skepticism in traditional project management since they might lead to increased expenses and scope creep. Agile teams, on the other hand, work to accept ambiguity and the fact that late changes can still benefit the customer. The iterative nature of Agile means that teams shouldn't have any trouble adapting to new circumstances as they arise.

3. Deliver Value Frequently  

This guiding principle emerged as a result of the mountain of paperwork that came with the software development planning process at the turn of the century. If you really take it to heart, you'll cut down on your planning time and have more time to get things done. In other words, your group will be able to be more flexible in its approach to planning.

4. Break the Silos of Your Project 

Cross-functional teams are essential to the Agile methodology because they facilitate dialogue amongst the various parties involved in a project. That "business people and developers must work together daily throughout the project" is word for word from the original text. 

Value creators and planners and sellers need to be in sync for this to work. By doing so, you may streamline internal communication and boost the efficiency of company operations.

5. Build Projects Around Motivated Individuals 

The fifth principle of Agile is to give team members more responsibility and less oversight in order to boost productivity and quality. "Build projects around motivated individuals," as it says in the original text that followed the Agile manifesto, is essential. 

Trust them to accomplish the job if you give them the space and resources they need. The engagement of your team will suffer if you don't have faith in them and insist on making even the smallest business choices centrally. If people don't feel like they have a stake in the success of a project, you won't be able to tap into their full potential.

6. The Most Effective Way of Communication is Face-to-face  

"The most efficient and effective method of conveying information to and within a development team is face-to-face conversation." The time it takes to get an answer to a question can be cut in half if you have that conversation in person. However, it presents a significant barrier in today's workplace, as teams frequently work together across international boundaries.

Thanks to the evolution of technology, this Agile principle can be translated from in-person meetings to "synchronous" or other forms of direct contact. As long as you have a mechanism to get in touch with your team without spending days exchanging endless emails, you should be fine.

7. Working Software is the Primary Measure of Progress 

There is no use in bragging about how many hours of work went into the project, how many bugs were squashed, or how many lines of code were written by the team. The outcome of your effort is disastrous if it does not meet the standards of your client.

8. Maintain a Sustainable Working Pace 

It stands to reason that when putting Agile into reality, you want to minimize stress on your team and maximize efficiency so that you can meet market demands and adapt to new circumstances with relative ease.

9. Continuous Excellence Enhances Agility 

"continuous attention to technical excellence and good design enhances agility," as stated by the authors of the Agile Manifesto. In the context of software development, this approach ensures that the end result is not simply functional, but also reliable and of high quality. As a result, there will be less of an effect on defects and malfunctions from code changes.

10. Simplicity is Essential

The original text of this principle, which states, "Simplicity-the art of maximizing the amount of work not done-is essential," can be hard to understand. However, it serves a useful purpose.

There's no need in overthinking a situation if a straightforward approach would do. The time and effort you put in are not being compensated by your clients. They are looking to solve a certain issue by purchasing this product. 

11. Self-organizing Teams Generate Most Value 

To maximize value for the client, empower your team to make decisions independently. It was said by the 17 founders of Agile that "the best architectures, requirements, and designs emerge from self-organizing teams" as an example of this principle.

You may not be ready for Agile, or you may need to adjust your leadership style, if you find yourself constantly pushing and "driving" your team along.

12. Regularly Reflect and Adjust Your Way of Work to Boost Effectiveness

This tenet is associated with taking stock of your efforts and figuring out where you could do better. Specifically, the team "reflects on how to become more effective at regular intervals, then tunes and adjusts its behavior accordingly," as stated in the extended form of the principle.

Benefits And Drawbacks Of Agile Software Development 


  • Increased Flexibility: Agile development allows for more improvisation than traditional approaches to project management. Changes can be made quickly and easily by development teams.

  • Enhanced Communication: Better communication between the development team and the product owner is one of the main benefits of adopting an agile approach to software creation. This has resulted in a heightened emphasis on communication and feedback.

  • Reduced Risks: Risks connected with complicated projects can be mitigated with agile development. Managers of large projects can satisfy stakeholder expectations by dividing the work into smaller chunks, or "sprints.

  • Higher Customer Satisfaction: Agility in software development has been linked to clients’ satisfaction. This is because the client actively participates in and gives feedback throughout the development process.


  • Limited Control: Because agile development is more malleable, it might be challenging for a project owner to exercise control. This becomes a challenge for undertakings that have a limited timeframe or budget.

  • Lack of Documentation: Agile development typically results in less documentation than traditional project management approaches. For initiatives that need a lot of paperwork, this is a major problem.

  • Better Team Collaboration: Agile development necessitates a high degree of teamwork, which might be difficult for distributed groups that aren't used to coordinating their efforts. This might cause misunderstandings and irritation.

  • Complicated Tasks Can Take A Long Time: It takes more time to implement Agile development than with certain other project management approaches, especially on more complex projects. This is because of the necessity of holding more frequent meetings and producing more paperwork.

Benefits And Drawbacks Of Agile Software Development 
Benefits And Drawbacks Of Agile Software Development (Source: Internet)

5 Phases Of Agile Software Development Life Cycle

Phase 1: Concept

The Agile development life cycle begins with a collaborative effort between project stakeholders and product owners to define the project's goals and objectives. They analyze the project's potential viability by considering factors such as budget, timeline, features, and prerequisites.

Phase 2: Inception 

In this stage, the entrepreneur assembles the right team, divides up responsibilities, and rolls out the development infrastructure.

Establishing a plan and defining the fundamental set of methodologies and templates for future development activities are crucial pre-development steps. There are two elements to the inception phase:

  • UX/UI Design: involves a thorough examination of the competition's strong points and weaknesses before creating a prototype.

  • Product Architecture: the team examines the best frameworks, containers, programming languages, etc., to use in order to match the needs of the business.

When this phase is complete, you'll have a solid foundation upon which to build your team and your product.

Phase 3: Iteration

During this stage, engineers and UI/UX designers work closely together to incorporate all business needs and feedback into the code. The product backlog is the focus of this phase, with work being accomplished in iterative "sprints" of development.

The iteration (or development) phase is crucial to the agile methodology since it enables the team to create a product with a minimum set of features and then add more as needed. When the coding is done, it's time to do some testing, write some specs, and call it quits on the iteration. 

Phase 4: Testing

>> You may consider: What Is Automation Testing?

The digital product is tested after each sprint, and then final testing is done to guarantee the program is error-free. 

Several forms of testing are integrated into the Agile life cycle:

  • Unit Testing: The quality assurance team now performs individual tests on both the front and back ends to determine how well they work together.

  • Integration Testing: During integration testing, several components of the product are combined to ensure they work together smoothly.

  • Acceptance Testing: After the development of a digital solution is complete, quality assurance specialists perform acceptance testing to see how well it meets the needs of the target audience.

  • System Testing: The entire system is tested, not just individual parts, to make sure everything works as it should. If all goes well with the testing, the QA team will give the green light for the next stage of deployment.

All of these tests are executed by the designated team to determine the code's quality and the product's viability in meeting organizational goals. The product has finally made it through all of the necessary tests and is ready for release. 

Phase 5: Release 

The key focus during this stage is on providing a reliable and efficient product that satisfies the needs of the target audience. To verify that the product is free of flaws and fully functional before release, quality assurance testing is performed. 

When the last of the checks and balances have been made, the product is ready for release. The software's development team will usually provide some sort of training to help users get up and running with the program. When the hardworking group has completed all of their tasks, they will enter the last phase.

Phase 6: Review

When an Agile software development project has reached this point, the goal switches from a successful launch to maintaining success over the long term. Customers are actively engaging with the product, providing feedback and suggestions for improvements.

Now it's up to the application's stakeholders, including the development and operations teams, to guarantee the app runs smoothly and reliably around the clock.

Agile Compared To Traditional Workflows





Flexible and adaptable.

Stiff and well-organized.

Client Participation

Encourage participation and feedback from clients at every stage of creation.

Customer input is minimal, and the finished product is sent to the customer as a final deliverable.

Team Structure

Cooperative and cross-functional.

Isolated and specialized.


Happens all the way through the development cycle.

When the development cycle is complete.


Agile Software Development is a software development approach characterized by its iterative and incremental nature, placing significant emphasis on the prompt and frequent delivery of a functional product. The process entails a strong partnership between the development team and the customer to guarantee that the product adequately fulfills their requirements and anticipations.

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