The Spiral Model is a risk-driven software development process model that combines elements of both prototyping and the 瀑布模型这是一种迭代开发模式，项目在每次迭代中经历四个阶段（螺旋式）：确定目标、识别并解决风险、开发和测试，以及规划下一次迭代。它强调持续的风险分析。
螺旋模型（SW过程）
1986-01-01
- Barry Boehm
（图片仅供参考）
Introduced by Barry Boehm in 1986, the Spiral Model was designed to address the shortcomings of the traditional Waterfall model, particularly for large, complex projects. Each loop of the spiral represents a phase of the software process. Unlike other models, it doesn’t start with a full set of requirements. Instead, the initial spiral might focus on developing a proof-of-concept to test feasibility. Each subsequent loop builds upon the last, moving from a conceptual level to a fully engineered product. The four key activities in each cycle are: 1) Determine objectives, alternatives, and constraints for the iteration. 2) Evaluate alternatives; identify and resolve risks. This is the most critical part, involving activities like prototyping, simulation, and benchmarking to mitigate high-risk elements. 3) Develop and verify the next-level product. This involves the actual coding, integration, and testing, similar to a mini-waterfall process for that iteration’s deliverable. 4) Plan the next iteration. The project is reviewed, and plans are drawn up for the next spiral. This model allows for the incremental release of the product and refinement of requirements throughout the development lifecycle, making it highly flexible and suitable for projects where risk management is paramount.
UNESCO Nomenclature: 1208
软件
类型
抽象系统
中断
递增
用法
小众/专业
前体
- 瀑布模型
- 原型模型
- 风险管理原则
- 增量开发模型
应用程序
- 大型、昂贵且复杂的政府项目
- 高风险软件开发
- 要求不明确或复杂的项目
- 研究与开发项目
专利：
NA
潜在创新理念
- 专注于市场风险的商业战略发展螺旋模型
- 根据学生失败风险调整教学螺旋的教育软件
- iterative 临床试验 design that spirals through phases based on risk-benefit analysis
- 采用螺旋式开发方法管理复杂子系统的航空航天项目
- 使用螺旋模型管理监管和市场风险的金融产品开发
- 大型基础设施项目（例如智慧城市）按照风险评估螺旋式规划
- 网络安全 system development that iteratively adds layers of defense based on evolving threat analysis
- 随着更多信息和风险变得清晰，灾害响应规划呈螺旋式发展
- 人工智能模型开发，其中每个螺旋都专注于减轻特定类型的偏差或错误
- 立法发展过程中，法案以螺旋式方式起草，每个阶段都进行风险分析
相关概念：螺旋模型、巴里·博姆、风险驱动、软件开发、迭代、原型设计、瀑布模型、风险分析、软件工程、项目管理。
历史背景
螺旋模型（SW过程）
（如果日期未知或不相关，例如“流体力学”，则提供其显著出现的近似估计）
