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Software Engineering Agile Model | CrackEase

Agile Model in SDLC

Agile Model

  • To overcome limitations of the Waterfall model, Agile approaches were introduced in the 1990s.
  • Agile emphasises adaptability, collaboration and delivering working software frequently.
  • It combines iterative and incremental development: work is split into short iterations (sprints) and delivered incrementally.
  • Each iteration includes planning, design, implementation, testing and review; customers give feedback after each iteration.
  • Changes can be incorporated in subsequent iterations, allowing early bug fixes and requirement updates.
  • Agile reduces the risk of late surprises since functional increments are delivered regularly.

Advantages Of Agile Model

  • Highly flexible and responsive to change.
  • Frequent customer feedback increases satisfaction and alignment with needs.
  • Early detection and fixing of defects within iterations.
  • Reduces time-to-market by delivering usable increments quickly.
  • Encourages close collaboration between developers, testers and stakeholders.
  • Improves visibility of progress through regular demos and reviews.

Disadvantages Of Agile Model

  • Can be hard to predict final cost and schedule early on due to evolving scope.
  • Requires active involvement from customers/stakeholders throughout the project.
  • May be challenging for large teams without good coordination and tooling.
  • Can suffer from scope creep if iterations are not well controlled.
  • Less emphasis on detailed documentation — may be problematic in regulated environments.
  • Needs experienced teams to implement Agile practices effectively.
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