Software Development Life Cycle (SDLC) process is the important topic to learn as a beginner. SDLC helps to create a detailed plan to Develop, Maintain, Replace even Alter a Software system.
There are different stages of SDLC which include Planning, Designing, Building, Testing and Deploying the developed Software.
The popular three different SDLC models are as follows,
- Waterfall Model
- Spiral Model
- Agile Model
Few other SDLC Models are Incremental Model, V-model, Iterative Model, RAD Model, and Prototype Model.
7 Phases of Software Development Life Cycle
This 7 stages of software development life cycle approaches are used to understand the software which is under development. Using this product life cycle you can easily build a system in a structured way.
SDLC stages can also be repeated for rework or to modify the Software.
Credo Systemz explains Waterfall Model
What is Waterfall Model?
Waterfall Model is very simple and easily understandable model which is introduced at first. This model is suitable for the development of small-scale projects.
In Waterfall Model the new phase begins only when the previous phase is fully completed, Thus overlapping of the phases will not occur in Waterfall Model.
Waterfall Model Advantages:
- Very simple and easy to learn this model
- Suitable for Small Projects
- Newbies can easily understand the phases of this model
- Overlapping issues will not occur
- Every single phase can be reviewed separately
Credo Systemz explains Spiral Model
What is Spiral Model?
Spiral Model is also called as Risk-Driven Process model, which combines the idea of Waterfall and Incremental model but provides more emphasis on risk analysis.
This Spiral model consists of four different phases which include Planning, Risk Analysis, Engineering & Evaluation.
Spiral Model Advantages
- Emphasis more on risk analysis, hence avoidance of Risk is assured
- Can be suitable for Large-scale projects as well
- Using this model the software can be developed early
- The development process works in a systematic way
Credo Systemz explains Agile Model
What is Agile Model?
Agile Software Development Life Cycle Model focuses more on Process Adaptability and Customer Satisfaction. This is also a type of Incremental Model which works by breaking the software project into small incremental builds.
Agile Model Advantages:
- The realistic approach in developing the software results better in customer satisfaction
- Very flexible to developers and easy to manage
- Documentation is easy because of the minimal rules
- This SDLC model is suitable for the projects with both fixed and changing requirements
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