System Development Life Cycle (SDLC)

Isaac Vaghefi

31 Jan 201903:27

Summary

TLDRThis video script offers an in-depth explanation of the System Development Life Cycle (SDLC), a structured approach to designing and building systems. It outlines the key phases: planning, where project goals and feasibility are assessed; analysis, where system requirements are defined; design, involving system architecture and specifications; and implementation, encompassing programming, testing, and user training. Each phase culminates in a review by a steering committee, ensuring a systematic progression towards a fully developed system.

Takeaways

📈 The System Development Lifecycle (SDLC) is a structured process for designing and building systems.
📝 The process starts with the planning phase, which includes project initiation, feasibility analysis, and risk assessment.
🤔 The planning phase involves asking fundamental questions about the purpose and structure of the project.
📋 A formal document called the system request is prepared during the planning phase.
🔍 The analysis phase focuses on understanding the system requirements, including use cases, data processes, and ER diagrams.
📁 The system proposal document is created during the analysis phase and presented to the steering committee.
🏗️ The design phase involves decisions on whether to build or outsource the system and covers system architecture and specifications.
🛠️ The implementation phase is where the actual programming, testing, installation, and training for the new system occur.
🔄 The SDLC is iterative, allowing for updates and major overhauls when necessary.
👥 Communication with stakeholders and presenting to the steering committee are crucial steps in the SDLC.
🛡️ Risk assessment and resource planning are important components of the planning phase to ensure project feasibility and success.

Q & A

What is the SDLC?
-SDLC stands for System Development Lifecycle, which is a classic method used for designing and developing systems.
What are the main phases of the SDLC mentioned in the script?
-The main phases of the SDLC mentioned are planning, analysis, design, and implementation.
What is the purpose of the planning phase in the SDLC?
-The planning phase is where the project's objectives, structure, and feasibility are determined. It includes project initiation, system request documentation, feasibility analysis, project planning, and risk assessment.
What is a system request document?
-A system request document is a formal document prepared during the planning phase that outlines the need for the project and its initial requirements.
What does the analysis phase involve?
-The analysis phase involves understanding the system requirements, preparing use cases, defining data processes, and creating a system proposal document to be presented to the steering committee.
What is the role of the steering committee in the SDLC?
-The steering committee reviews documents such as the system proposal and system specification, providing decisions and guidance throughout the SDLC process.
What decisions are made during the design phase?
-During the design phase, decisions regarding the system's architecture, hardware, software, and network requirements are made. A system specification document is created for the steering committee's review.
What is included in the implementation phase?
-The implementation phase includes programming, system testing, installation, ongoing support, and training for the new system.
What is the significance of the ongoing support in the implementation phase?
-Ongoing support is crucial for addressing any issues that arise post-implementation and ensuring the system operates effectively and efficiently.
How does the SDLC cycle continue for system updates or major overhauls?
-The SDLC cycle continues by revisiting the planning phase for new projects or updates, ensuring a structured approach to system development or enhancement.
What is the final outcome of the SDLC process?
-The final outcome of the SDLC process is the completion of the system development lifecycle, resulting in a fully implemented and operational system.