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Waterfall development is a linear sequential development process described by Winston Royce in 1970, progressing through fixed phases of requirements → design → implementation → testing → maintenance.
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8/19/2026
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Related Claims
UnverifiedThe Waterfall Model was proposed by Winston Royce in 1970.73% similarUnverifiedSDD inherits decades of software engineering methodology, including Royce's waterfall model from the 1970s, Design by Contract from the 1990s, and TDD (Test-Driven Development).62% similarUnverifiedThe Agile Manifesto originated in 2001, and the Agile development movement criticized the waterfall model for its emphasis on heavy upfront design and lack of iterative responsiveness60% similarUnverifiedClassic test design methods such as equivalence class partitioning, boundary value analysis, and decision tables all originate from the software engineering formalization movement of the 1970s.57% similarUnverified规范驱动开发（SDD）的思想根源可追溯至1970年代的形式化方法和Dijkstra等人倡导的程序正确性证明理论52% similar
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