Introduction to SDLC
Last updated
Last updated
SDLC or the Software Development Life Cycle is a process that produces software with the highest quality and lowest cost in the shortest time possible.
SDLC provides a well-structured flow of phases that help an organization to quickly produce high-quality software which is well-tested and ready for production use.
SDLC works by lowering the cost of software development while simultaneously improving quality and shortening production time.
Creates the software through the stages of analysis, planning, design, development, testing, and deployment.
By anticipating costly mistakes like failing to ask the end-user or client for feedback, SLDC can eliminate redundant rework and after-the-fact fixes.
As the SDLC is a repetitive methodology, you have to ensure code quality at every cycle.
Defining requirements is considered part of planning to determine what the application is supposed to do and its requirements.
Requirements also include defining the resources needed to build the project.
In the planning phase, project goals, requirements, and constraints are defined. This involves gathering business requirements, conducting feasibility studies, and creating a project plan.
The design phase involves creating a blueprint for the software. This includes system architecture, database design, user interface design, and other technical specifications.
In the development phase, actual coding of the software takes place. Programmers write code according to the design specifications and follow coding standards.
Testing is a crucial phase where the software is evaluated for defects, bugs, and compliance with requirements. This includes unit testing, integration testing, system testing, and acceptance testing.
Once the software passes testing, it is deployed for end-users. This may involve installation on servers, distribution through app stores, or other deployment methods.
After deployment, the software enters the maintenance phase. This involves addressing user feedback, fixing bugs, making updates, and ensuring the software remains functional.