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Agile software development life cycle is basically an IT based development model which is a combination of repetitive and incremental model of multiple processes. The model 100% focuses on delivering a working software product that provides complete customer satisfaction and adaptability. There are certain popular agile techniques that are widely used, such as-

• Test-Driven Design (TDD)
• Database re-factoring
• Agile change management

There are certain steps that are combined together to create the complete working Agile Software Development Life Cycle as mentioned below :

1. Concept: Pre-planning/ Iteration-1
2. Inception
3. Construction iterations
4. Transition/Release iterations
5. Production
6. Retirement

1. The Concept Phase: Pre-Project Planning 
The Concept Phase is also called the Iteration -1 stage which is the pre-project aspects of the developmental stage. Following things need to be done during the following phase:

1. Define the business opportunity
2. dentify a viable for the project
3. Assess the feasibility

The activities during this stage needs to be as agile as possible to consider the complete potential of the project.

2.Inception/Warm Up: Project Initiation
The first week or the initial working time of an agile project is referred to as “Iteration 0” (or “Cycle 0”) or in the “Warm Up” iteration stage. This is basically the project initiation stage of the model. The main goal during this period is to basically initiate the project by :

1. Gathering initial support and funding for the project.
2. Actively working with clients and developers to initially model the scope of the system.
3. Begin building the team
4. Setting up the environment for the project development
5. Estimating the project standards

3. Construction Iterations
During the construction iteration phase the individuals work towards incrementally delivering high-quality working software that meets the needs of the changing demands. The stage also covers the following points of :

1. Close collaboration with both different working units and with other developers
2. Implementing various functionality in the correct priority order
3. Analysis and design
4. Quality assurance
5. Regularly delivering working solutions

4. Transition/Release iterations : This phase deals with the certain release iterations of the project. This is basically the transition phase of the project which needs the full support of the developer along with the related developers.

5. Production
With the successful completion of the transition phase the project falls into the final stage of production. This is basically the finalizing stage of the agile development cycle that leads to the final production of the project.
6. Retirement
The final phase of the Agile development cycle that leads to the final implementation of the developed software or also called as the retirement stage. This stage is re-fried as the retirement phase due to the final structure achievement of the stage leading to completion of the project and thereby release of the related developers.

This is what an agile software development cycle is and the way of processing for such software development phase. This is one of the most popularly used software development cycle among the developers.