Agile Development Methodology : Process Explained

The agile development methodology is also known as the Agile method. Flexibility is incorporated into the development process to deliver a product with pragmatism. Many companies must change their culture to implement an agile software development process. Since it focuses on delivering software components rather than the entire application. A big advantage of Agile is that it helps teams cope with evolving landscapes. As a result of Agile’s collaborative culture, teams work more efficiently. 

Companies using Agile software development stay confident in releasing a high-quality product. It is because testing is done throughout the development process. Also, the agile development process supports making any necessary changes. Agile has overtaken waterfall in many companies’ development methodologies. However, there is a risk of being replaced or destroyed by DevOps.

What is Agile Software Development Methodology?

Agile is the efficient method for translating a business vision into software solutions. The term “agile” is used to characterize methods for developing software. It involves ongoing planning, learning, teamwork, evolutionary development, and early delivery.

Types of Agile Software Development Process

1. Scrum

Scrum provides a lightweight Agile framework for project managers. The system controls any iterative or incremental project. Product owners use backlog to identify and prioritize system functionality with their teams. The product backlog lists all the tasks to deliver successful, working software. A bug fix, a feature, and a non-functional requirement are included in this category. Having defined the product backlog, only the corresponding team can add additional functionality.

After establishing priorities, cross-functional teams undertake sprints and deliver working software increments. Product backlogs are analyzed and prioritized to determine the next sprint’s deliverables. Over the years, Scrum has become increasingly popular for its simplicity and productivity. Various Agile methods can incorporate overarching practices.

2. Lean Software Development 

An iterative process that emphasizes effective customer value stream mapping. The system evolves and is flexible. Rules and guidelines are not rigidly enforced. Several primary principles underlie the Lean method:

• The enhancement of learning
• Team empowerment
• Integrity promotion
• Getting rid of waste
• A holistic view
• Taking decisions at the last minute
• Fast delivery of the product

To implement lean methods efficiently, customers and developers must communicate quickly and reliably. Instead of relying on a hierarchical control flow, it empowers people to make decisions. Using the lean methodology, users can select the features they need most. Deliver these features chosen in small batches based on their priority. The Lean approach encourages the parallel development of automated unit tests. Each team member is trained to ensure maximum productivity.

3. Kanban

Kanban is widely used in Lean teams as a highly visual workflow management method. Approximately 83 percent of agile teams utilize Kanban. Kanban helps to visualize and manage product creation. It focuses on continuous delivery without overburdening developers. Kanban is a process designed to improve teamwork. Three basic principles govern Kanban:

• Visualize Workflow

It is beneficial to see all the items in context with one another.

• Maintain A Reasonable Amount Of Work In Progress (WIP)

  Flow-based approaches are balanced by limiting the number of work teams take at once.

• Improve The Flow Of Information

 A completed item replaces the next highest priority item in the backlog. By defining the most effective team workflow, Kanban encourages continuous learning and improvement.

4. Extreme Programming

Extreme Programming (XP), developed by Kent Beck. A popular and controversial Agile methodology gains popularity over the last few years. An XP approach aims to deliver high-quality software quickly and continuously. Changing customer requirements require improving software quality and responsiveness. The process frequently uses frequent feedback loops, continuous testing, and close team collaboration to deliver working software.

By utilizing “extreme” levels, the benefits of traditional software engineering methods are maximized. The practice of pair programming can essentially allow code to be reviewed continuously. Four basic values underlie the original XP method: simplicity, communication, feedback, and courage. Furthermore, it is supported by twelve practices:

• Planning Game
• Customer Acceptance Tests
• Pair Programming
• Refactoring
• Simple Design
• Test-Driven Development
• Coding Standards
• Continuous Integration
• Metaphor
• Collective Code Ownership
• Sustainable Pace

5. Crystal 

Crystal is the lightest and most adaptable methodology. As part of an Agile project, it emphasizes people’s interactions and their roles. A business-criticality assessment and priority assessment are also performed. Crystal assumes every project is unique. Policy, practices, and processes must be tailored to suit its needs. Consequently, it consists of different Agile process models, including Crystal Orange, Crystal Clear, and Crystal Yellow. Models differ based on a variety of factors. Priorities and team sizes are taken into account, as well as the severity of the system. 

We focus on delivering working software frequently while eliminating bureaucracy and distractions. Communication, teamwork, and simplicity are its key principles.

6. Feature Driven Development (FDD)

Feature-Driven Development (FDD) began in 1997. Software is developed iteratively and incrementally using an agile method. Integrating industry-recognized best practices is an integral part of FDD. Clients value features (functions) based on practices. Project objectives include delivering tangible, working software in a timely manner. Due to its feature-centric approach, it can effectively manage agile, incremental projects. Basically, it involves five activities:

1. Modeling an overall approach
2. The development of a feature list
3. Feature-based planning
4. Incorporating features into the design

7. Adaptive Software Development (ASD)

John Highsmith and Sam Bayer developed ASD in the early 1990s. This framework builds on RAD Agile by breaking projects into week-long iterations. ASD emphasizes the deep integration of user feedback. It involves them throughout the development process. Additionally, it promotes the emergence of new directions and features.

8. Agile Manifesto

The Agile Manifesto was released in 2001, coining the term “Agile.” The manifesto outlined a better approach to software development. There are four important values in the Agile Manifesto. As we read the Agile Manifesto, the right side no longer holds any value, whereas the left side is valued more.

Let’s start with the first line of the Agile Manifesto. Extensive processes and tools aren’t as important as valuing people, interaction, and collaboration. There is no doubt that processes and tools are valuable. The value of these tools is greatly increased. Effective tools facilitate collaboration and enable the delivery of great products. Nowadays, many organizations rely on processes and tools to accomplish goals. Taking an Agile approach, we value this differently. Process and tools should support working together and delivering value to customers.

9. Dynamic Systems Development Method (DSDM)

DSDM contains eight principles, a product life cycle, roles, and best practices. The objective is to deliver strategically aligned business benefits early to maximize ROI.

DSDM emphasizes schedule and quality over functionality, quality, and fixed costs. A project’s requirements can be broken down into four categories:

• Must have (M)
• Should have (S)
• Could have (C)
• Won’t have (W)

DSDM Atern is based on eight principles. The team must follow these principles to determine the attitude to adopt when delivering consistently.

1. Consider the needs of the business
2. Maintain a timely delivery schedule
3. Engage in collaboration
4. Ensure quality at all times
5. Develop iteratively
6. Communicate clearly
7. Establish control

Final Thoughts

Agile development is one of the key buzzwords of the business. It is an umbrella word for a collection of behaviors based on values and concepts. Collaboration between self-organizing, cross-functional teams adopting the best methods for their context leads to solutions.