In this post, we will be cover all important questions of SAD so let's get start now.
- a) Prototyping
- b) JAD (Joint Application Development)
- c) System Analyst
- d) Flowchart
Explain SDLC in Detail.
The System Development Life Cycle (SDLC) is a structured approach used to develop information systems and software applications, consisting of several phases that guide a project from initiation through deployment and maintenance. Each phase in SDLC has a specific purpose, ensuring systematic progress in building a high-quality system that meets or exceeds customer expectations.
Here’s a detailed breakdown of each SDLC phase:
1. Planning
- Objective: Establish the project's purpose, scope, resources, budget, and timeline.
- Activities:
- Identify and define the problem or opportunity.
- Assess the feasibility of the project.
- Define project goals and objectives.
- Prepare an initial project plan.
- Outcome: Project Charter or Initial Plan outlining the project’s roadmap.
2. Requirements Gathering and Analysis
- Objective: Understand the end-user needs and requirements.
- Activities:
- Collect requirements through interviews, surveys, and workshops.
- Analyze and document these requirements to create clear, measurable specifications.
- Define both functional requirements (what the system should do) and non-functional requirements (how it performs tasks, like security and performance).
- Outcome: Requirements Specification Document.
3. Design
- Objective: Create a blueprint for the system that will meet the defined requirements.
- Activities:
- Develop system architecture and data flow diagrams.
- Design user interfaces, system models, and databases.
- Prepare detailed technical specifications for components, modules, and interfaces.
- Outcome: Design Documents, including High-Level Design (HLD) and Low-Level Design (LLD).
4. Development (Implementation)
- Objective: Write code to build the system based on design specifications.
- Activities:
- Developers code each component, module, and feature as defined in the design phase.
- Integrate different modules and ensure they work together.
- Conduct code reviews, optimize code, and apply version control.
- Outcome: Working system or software with all functionalities in place.
5. Testing
- Objective: Identify and resolve defects, ensuring the system is error-free and meets quality standards.
- Activities:
- Execute different types of testing, such as unit testing, integration testing, system testing, and user acceptance testing (UAT).
- Validate functionality, performance, and security.
- Document and fix any issues or bugs found during testing.
- Outcome: A stable and functional product ready for deployment.
6. Deployment
- Objective: Release the final product to the end users.
- Activities:
- Move the system to a live environment (production).
- Perform necessary configurations and monitor for any potential issues.
- Provide user training if needed.
- Outcome: Fully functional system available for users.
7. Maintenance and Support
- Objective: Ensure the system remains operational and up-to-date over time.
- Activities:
- Address and fix any issues that arise post-deployment.
- Perform regular updates and add enhancements based on feedback.
- Conduct periodic maintenance to optimize performance.
- Outcome: Updated and well-maintained system that continues to meet user needs.
Benefits of SDLC
- Provides a structured and systematic approach to software development.
- Improves project predictability, quality, and efficiency.
- Reduces risks by setting clear requirements and early-stage planning.
- Helps ensure timely delivery and alignment with end-user expectations.
By following the SDLC phases, development teams can deliver high-quality software that meets functional requirements, is reliable and is maintainable over time.
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