Types of SDLC

There are various software development life cycle models defined and designed which are followed during the software development process. These models are also referred as Software Development Process Models”.

1. Waterfall

The waterfall model is one of the oldest surviving methods of the SDLC.

the Waterfall model follows a simple approach, which is a favorable quality for many software development teams.

Under the waterfall procedure, the project development team must take turns completing each phase.

Moreover, there is no reversal. Each subsequent stage of the SDLC process relies on the information obtained from the previous one.

Waterfall

1. Iterative

The iterative methodology takes the waterfall model and cycles through it several times in small increments.

Rather than stretching the entire project across the phases of the SDLC, each step is turned into several mini-projects that can add value as the product evolves.

Iterative Model

1. Agile

Agile method is based on an incremental and iterative approach. Fast failure is a welcome aspect of agile technology.

This creates continuous release cycles. Each of them contains minor changes from the previous release.

The composite product is tested at every iteration.

Agile Model

1. V Model

V model is inspired by the waterfall model, in contrast to it, in which testing is done at the end of the project, testing is introduced at all stages of development.

As in the Waterfall model, each subsequent phase of the V model does not begin until the previous one is completely completed.

V Model

1. Spiral

The spiral method is considered to be one of the most flexible SDLC models. The Spiral model enables project teams to create highly customizable products.

The spiral method goes through four stages of repetition until the project is completed.

This allows for many product adjustments. The four stages followed by the Spiral method are planning, risk assessment, design and evaluation.

Spiral Model

1. DevOps

DevOps is to connect development teams with operational teams to simplify delivery and support.

DevOps is short for developers and operators.

Using the DevOps method, developers and operations teams work together to expedite and modify the implementation and creation of highly reliable software products.

The key features of the DevOps model are consistent feedback, discipline, process improvement and automation of as many manual processes as possible.

DevOps