Overview
This lecture introduced the Software Development Lifecycle (SDLC), covering its definition, history, and key advantages for software projects.
What is the SDLC?
- The SDLC is a systematic process for developing high-quality software within a predictable timeframe and budget.
- It provides a cycle of planning, design, and development phases.
- The goal of the SDLC is to create software that meets client business requirements.
History of the SDLC
- The SDLC originated in the mid-1960s due to increased software complexity.
- Large corporations adopted the SDLC to manage complex business systems.
- The original SDLC used the Waterfall method, a linear, stage-driven approach.
- Iterative methods later evolved to address changing customer needs and requirements.
Key Advantages of the SDLC
- Provides teams with a repeatable process rather than relying on ad hoc methods.
- Outlines discrete, well-defined phases so team members know their tasks and timelines.
- Enhances communication among customers, stakeholders, and development teams.
- Lets stakeholders understand their roles and where they fit into the process.
- Supports iteration to adapt to changing requirements and customer feedback.
- Identifies and solves problems early, often in the design phase.
- Clearly defines team member roles, reducing conflict and overlapping responsibilities.
Key Terms & Definitions
- SDLC (Software Development Lifecycle) — A structured process for planning, creating, and maintaining software.
- Waterfall method — A linear software development approach moving through fixed, consecutive stages.
- Iterative methods — Approaches that allow for revisiting and revising development phases as needed.
Action Items / Next Steps
- Watch the upcoming video on specific SDLC phases and alternative development approaches (e.g., Waterfall).
- Review definitions and concepts covered in this introduction.