| Year | Process/Model | Improvements Over Previous Models |
|---|---|---|
| 1970 | Waterfall | Introduced structured phases (requirements → design → implementation → testing); first formal method. |
| Late 1970s | Iterative & Incremental | Allowed revisiting earlier phases and delivering partial systems; improved flexibility and feedback. |
| 1986 | Spiral Model | Combined iteration with formal risk analysis; emphasized prototyping and risk management. |
| 1990s | Rational Unified Process (RUP) | Use-case driven, architecture-centric, and iterative development with strong tool support. |
| 2001 | Agile Methods (e.g. Scrum, XP) | Focused on collaboration, working software, adaptability, and continuous feedback. |
| Late 2000s | DevOps | Integrated development and operations; emphasized automation, CI/CD, and system reliability. |
Created
May 9, 2025 10:53
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