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Agile software development

What is Agile Development?

Agile development has become a buzzword in the software development industry. It is an iterative approach that focuses on delivering software in small, manageable chunks rather than a massive, monolithic release. In this comprehensive guide, we will explore the origins of agile development, its key principles, benefits, and how it has revolutionized software development.



Origins of Agile Development


Agile development emerged in the early 2000s as a response to the traditional waterfall model. Waterfall is a linear approach where development progresses through a series of stages in a sequence, such as requirements gathering, design, implementation, testing, and deployment. The problem with the waterfall model is that it assumes that all requirements can be defined upfront, and any changes made later in the development cycle can be costly.
Agile development was born out of frustration with the waterfall model. In 2001, a group of 17 software developers met in Utah to discuss a new approach to software development. They produced the Agile Manifesto, which outlined four core values and twelve principles for agile development.



The Four Core Values of Agile Development

Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan



The Twelve Principles of Agile Development


Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.
Welcome changing requirements, even late in development. Agile processes harness change for the customer’s competitive advantage.
Deliver working software frequently, with a preference for the shorter timescale.
Business people and developers must work together daily throughout the project.
Build projects around motivated individuals. Give them the environment and support they need and trust them to get the job done.
The most efficient and effective method of conveying information to and within a development team is face-to-face conversation.
Working software is the primary measure of progress.
Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.
Continuous attention to technical excellence and good design enhances agility.
Simplicity, the art of maximizing the amount of work not done, is essential.
The best architectures, requirements, and designs emerge from self-organizing teams.
At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly.


Key Principles of Agile Development


Agile development has several key principles that guide the development process. 


These principles include:


Iterative and incremental development: Agile development uses an iterative and incremental approach to software development. This means that the software is developed in small, manageable chunks, which are tested and delivered frequently.
Continuous feedback: Agile development relies on continuous feedback from stakeholders, including customers, developers, and testers. This feedback is used to improve the quality of the software and ensure that it meets the needs of the customer.
Collaboration: Agile development emphasizes collaboration between stakeholders, including customers, developers, and testers. This collaboration ensures that everyone is working towards the same goals and that the software meets the needs of the customer.
Adaptive planning: Agile development uses adaptive planning, which means that the plan for the development process is flexible and can be changed as needed. This allows the development team to respond quickly to changes in requirements and priorities.
Emphasis on people: Agile development places a strong emphasis on people, including customers, developers, and testers. It recognizes that people are the most important aspect of the software development process and that their skills and knowledge are critical to the success of the project.








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