Software Engineering Definition | SDLC Models

What is Software Engineering?

• Software engineering is a systematic approach to developing and maintaining software applications.
• Software engineering includes the entire software development lifecycle, including testing and deployment.

Software Crisis in Software Engineering

• Software crisis refers to a situation in which there are significant problems with creating and maintaining software.
• These problems can include delays in finishing projects, bugs, and errors in the software.

SDLC in Software Engineering

Planning

• In this step, we figure out what the software needs to do.
• We discuss with users and developers to understand their requirements and expectations from the software.

Analysis

• Once we know what the software should do, we examine the requirements in detail.
• We check if they are realistic and achievable. If needed, we make changes to clarify things better.

Design

• This is like creating a blueprint for the software.
• We decide how the software will look and how it will work.

Implementation

• In this step, we actually start building the software based on the design.
• We write the code and create the different parts of the software.

Testing

• After building the software, we need to make sure it works correctly.
• We test it thoroughly to find and fix any bugs or issues.

Deployment

• Once the software has been tested and is working well, we release it to the users. They can start using it.

Maintenance

• Software needs care even after it's released.
• We keep an eye on it, fix any problems that may come up, and sometimes add new features or improvements.

SDLC Models in Software Engineering

• Waterfall Model
• Prototype Model
• Spiral Model
• Agile Model

Conclusion