DevOps is the software development technique that offers high reliability and quickness in developing a high-quality software program. The term DevOps is comprised of the terms Development and Operations and it allows a single group to carry out the entire application development life cycle, which includes development, testing, release, and operations. One can have the whole process done within a shorter period of time when they choose DevOps’s platform to work with.

The DevOps Life cycle has different stages such as continual development, continuous integration, continuous testing, continuous-release, and continual maintenance. A continuous bug test is done on the developed software at the Continuous testing stage. This process is done with the help of tools like Selenium, TestNG, JUnit, etc. The integral part of the whole DevOps cycle is the Continuous Integration stage. It is in this software development method the developers call to commit adjustments to the source code extra often. In the Constant Deployment stage, the code is deployed to the production servers. One should importantly make sure that the code is suitably deployed on all the servers. An essential stage of the DevOps cycle is the Continuous Maintenance stage. The performance of the application is continuously tracked here.

To the question of why DevOps, the answer is the disadvantage of two previous models, waterfall model and agile model respectively. Though the waterfall model was simple and linear, it required projects with stable requirements to be appropriate with. In today’s World where the changes happen rapidly and about every field is dynamic, this is a disadvantage to waterfall model. While coming to the agile methodology, the growth and testing activities were concurrent unlike waterfalls. But there was a lack of collaboration between the Developers and Operation Engineers which eventually declined the processes. DevOps replaces all these disadvantages and it helps speedily to build a remarkable high-quality software program.