Software development lifecycle (SDLC) is a process used by developers to plan, design, build, test, and deploy software applications. SDLC development guidelines provide a framework for ensuring that software is developed in a consistent, standardized, and high-quality manner. The following procedures should be followed by developers throughout the SDLC process:
- Follow naming conventions and coding standards to ensure consistent and maintainable code.
- Use version control systems to manage changes to the codebase and ensure that the code is always in a deployable state.
- Write code that is modular, extensible, and scalable.
- Write automated unit tests for all code to ensure that it meets functional and non-functional requirements.
- Code review should be done by a team of developers to ensure code quality.
- Promote code through different environments, such as Dev, Test, Staging, and Production.
- Use continuous integration and delivery (CI/CD) tools to automate build, test, and deployment processes.
- Ensure that code is tested thoroughly in each environment before being promoted to the next one.
- Use feature toggles to allow selective deployment of new features to reduce the risk of breaking changes.
- Use build tools such as Maven or Gradle to automate the build process and ensure that it is consistent across different environments.
- Build artifacts should be versioned and stored in a repository such as Nexus or Artifactory.
- Build scripts should be written in a way that is maintainable, extensible, and scalable.
- Build dependencies should be managed using dependency management tools such as Maven or Gradle.
- Use deployment automation tools such as Ansible or Chef to ensure that deployments are consistent and repeatable.
- Deployments should be tested thoroughly in a staging environment before being deployed to production.
- Use canary releases to gradually deploy new features to a subset of users to minimize the impact of any issues.
- Use blue-green deployments to minimize downtime during deployments.
- Monitor the application in production using monitoring tools such as CloudWatch or Nagios.
- Use alerting mechanisms to notify the team of any issues and take corrective actions as necessary.
- Regularly review and update the application and its dependencies to ensure it is up-to-date and secure.
- Use automated testing tools to test the application in production to ensure it works as expected.
In summary, following SDLC development guidelines is essential to ensure that software is developed in a consistent, standardized, and high-quality manner. By following these guidelines, developers can reduce the risk of defects and ensure that software is delivered on time and within budget.