Discuss the system development life cycle. (500 words)

- Briefly introduce the system development life cycle (SDLC) and its key phases: planning, analysis, design, implementation, testing, deployment, and maintenance covering all the stages of software development life cycle.

- Clarify the stages such as diagnosis, design and implementation by devoting 2-3 sentences to each aspect. Talk about the reason of their existence, suppliers, various activities, product or service and touch upon the people unlike them who are directly or indirectly affected by their activities.

- The linear sequential is a single, uninterrupted and stepwise approach. By contrast, iterative and incremental models are small steps that allow adjustments or changes as needed. Advantage of iterative approaches then follow.

- Summarize by stressing on the fact that SDLC is an efficient technique to develop IS following a structured methodology that helps meet the business objectives.