With the ongoing technological advancements, software industry is one of the top fields that’s on the rise. Software and digitization has penetrated almost every industry past year and, hence, it’s very obvious that it’s going to rock 2020 as well. With this increasing demand of software’s in industries, the need of skilled developers and advance software development processes has also increased drastically. Software Development Life Cycle (SDLC) is one of the process invented to produce high quality software at low cost and shortest time possible.
SDLC, basically, gives you a detailed process on how to develop, maintain, alter and replace a software system. Therefore, giving you a full proof plan to avoid pitfalls in software development projects. What makes SDLC utmost important is, it divides the entire life cycle of software development into distinct phases. Each of these phases has its own process and deliverables that is fed into next phase. Hence, this method of software development enables easy detection of faults in the development process and eliminate redundant rework.
Software Development Life Cycle (SDLC) Phases
Widely used SDLC Models
- Waterfall Model
Derived from traditional engineering, Waterfall Model provides a predetermined rigid path through a set of phases. Here, each phase is completed successfully and reviewed before moving on to next phase.
- Iterative Model
This model favors initiation of project before being familiar with list of full requirements. Being a repetitive process, this model enables making of new versions of the product for every cycle, therefore, ensuring slow and steady movement towards the planned final product.
- Spiral Model
This model can be considered as the mid-way solution between Waterfall Model and Iterative Model. However, the main challenge here is to set a perfect time to move into next phase, as it doesn’t have restrictions to complete tasks like that of phases in waterfall model. It is typically used for large and expensive projects.
- Agile Model
Agile model favors continuous development, feedback and improvisation in the software development process. Unlike in waterfall model, this model practices showing of output to users after every iteration and conforming if it meets client/user expectations or vision.
- V-shaped Model
This model is an upgrade of classic waterfall model and practices “Validation and Verification” before moving on to next stage. It emphasis more on testing therefore, making it compulsory to write testing procedures before writing actual software programming code.