6-7 Week

• A systems development life cycle (SDLC) is a conceptual model used in project management that describes the stages involved in an information system development project, from an initial feasibility study through maintenance of the completed application. The SDLC can be seen as a roadmap for the development process, providing a framework for planning, creating, testing, and deploying a system.
• Planning and analysis: This phase involves defining the scope of the project, identifying the project's stakeholders, and assessing the feasibility of the project.
• Design: This phase involves creating a detailed blueprint for the system, including its architecture, user interface, and data structures.
• Development: This phase involves coding the system and building the infrastructure needed to support it.
• Testing: This phase involves testing the system to ensure that it meets the requirements of the stakeholders and functions as intended.
• Deployment: This phase involves releasing the system to the end users and making it available for production.
• Maintenance: This phase involves ongoing support of the system, including fixing bugs, updating features, and applying security patches.
• The planning and analysis phase of the SDLC is arguably the most crucial stage of the entire development process. It's where the groundwork is laid for a successful project, and where a solid foundation is built upon which the rest of the SDLC phases can progress smoothly.
• Project Initiation involves identifying the need for a new system, defining the project's objectives, and securing stakeholder buy-in.
• Stakeholders in a project include anyone with an interest in the project, such as clients, end users, investors, and developers.
• A Feasibility Study assesses the technical, economic, and operational feasibility of the project.
• Requirements Gathering involves collecting and documenting the needs and expectations of all stakeholders.
• Requirements Analysis involves analyzing the gathered requirements to ensure they are clear, complete, consistent, and achievable.
• Prioritizing the requirements and identifying any potential conflicts is a part of Requirements Analysis.
• System Design involves creating a high-level overview of the system, including its architecture, components, and interfaces.
• Project Planning involves creating a detailed plan for the project, including timelines, milestones, budgets, and resource allocation.
• The Design phase in SDLC acts as the bridge between the conceptual blueprint of the project laid out in the Planning and Analysis phase and the concrete coding and development stage. It's where the abstract requirements are translated into a detailed technical roadmap for building the system.
• Detailed Design involves breaking down the high-level system design into smaller, more manageable components, including defining the user interface (UI), database schema, system architecture, and algorithms.
• Data Design involves designing the database that will store the system's data, including defining the tables, columns, and relationships between them.
• Interface Design involves designing the user interface (UI) and the system's interfaces with other systems, including designing the screens, menus, and buttons that users will interact with.
• Architecture Design involves defining the overall architecture of the system, including its components, how they interact with each other, and the technologies that will be used to build it.
• Prototyping involves creating a working prototype of the system that can be used to test the design and get feedback from stakeholders.
• Documentation involves documenting the design decisions made in the phase, including the system design document, the user interface specifications, and the technical specifications.
• The Development phase in SDLC is where the magic truly happens! It's the exciting stage where the abstract plans and detailed designs from the previous phases are transformed into tangible code and functioning software. Think of it as the construction phase of building a house – with the blueprints finalized, it's time to lay the bricks, put up the walls, and install the finishing touches.
• Coding: This is where developers write the actual code that will make the system work.
• Programming languages, frameworks, and libraries are used to implement the functionalities and features defined in the design documents.
• Unit Testing: As code is written, individual units of code are tested to ensure they work as intended.
• Unit Testing helps to catch bugs early and prevent them from propagating to larger parts of the system.
• Integration Testing: Once individual units are tested, they are integrated together to form larger components.
• The Testing phase in SDLC acts as the quality checkpoint, where the meticulously crafted software undergoes careful scrutiny to ensure it meets its intended purpose and functions flawlessly. Think of it as the final inspection of a newly built bridge before opening it to traffic – every bolt, beam, and connection needs to be rigorously tested to guarantee the safety and smooth passage of vehicles.
• System Testing: The entire system is tested as a single entity to guarantee it meets all the specified requirements and performs as expected.
• User Acceptance Testing (UAT): The end users themselves test the software in a real-world environment to confirm it meets their needs and expectations.
• Defect Management: Throughout the testing process, any identified bugs or errors are documented, tracked, and prioritized for fixing.