Software Development life Cycle - Part 2
Benedict Anthony
October 14th 2024
Software Development Life Cycle Models
There are currently numerous accepted SDLC models in use. However, none of them is flawless, and each has advantages and downsides that should be considered for a particular software development project or team. Here, we have listed the top five most popular SDLC models:
Keep It Simple, Stupid (KISS)
Keep things simple, stupid. The KISS principle states that designs and/or systems should be as simple as possible. Wherever possible, complexity should be minimized in a system since simplicity ensures the highest levels of user acceptability and interaction. KISS is utilized in a wide range of fields, including interface design, product design, and software development.The KISS concept is crucial because it has a direct impact on product success. If our users don't comprehend a product, they won't use it. Not only is it significant for the end user experience, but it is also relevant for product managers—the more complexity we build into our products, the more difficult it will be to maintain them.
1. Waterfall Model
It is the core paradigm of the life cycle of software development. This model is quite basic. Although it is no longer in use, the waterfall model serves as the foundation for all other SDLC models. The waterfall approach is easier to apply and produces a concrete result because of its straightforward structure. Because of its less flexible nature, the waterfall model is no longer in use. Once a phase appears to be finished, it cannot be altered.
2. Agile Model
The primary purpose of the agile approach in the SDLC was to quickly adjust to changing requests. Facilitating rapid project completion is the Agile model's primary objective. A collection of development procedures is referred to as the agile model. While these processes share significant similarities, they also differ slightly from one another.
3. Iterative Model
Every cycle in the iterative model of the software development life cycle (SDLC) yields a semi-developed yet deployable version of the program. Each cycle also adds requirements to the program, and the final cycle produces software that has all of the requirements specified.
4. Spiral Model
One of the most important SDLC models that supports risk management is the spiral model. Its diagrammatic depiction has a variety of spirals, the number of which varies depending on the project type. The phases of the spiral model are represented by each loop in the spiral structure.
5. V-Shaped Model
The SDLC's V-shaped concept is implemented in a sequential fashion. This methodology features integrated testing phases for each level or phase. Every development phase has a testing phase that comes after it, and the next phase (development & testing) begins after the previous phase is finished. It is sometimes referred to as the validation or verification model.
6. Big Bang Model
An informal and unstructured method to software development without detailed planning, documentation, or clearly defined phases is known as the "Big Bang model" in the SDLC.
What is the need for SDLC?
A software development organization will use the Software Development Life Cycle (SDLC) as a method, approach, or process while building any product. In order to design software in a methodical and disciplined manner, SDLC models were introduced. The software design process is broken down into manageable chunks by the software development life cycle, which helps to clarify and simplify the problem. A thorough explanation or step-by-step method for designing, developing, testing, and maintaining software is included in the SDLC.