展示HN：为什么系统建模应该像代码，而不是PowerPoint
系统工程师使用无法进行有效差异比较/合并/版本控制的工具来建模价值数十亿美元的航天器、救生医疗设备和自主车辆，即使在大型昂贵的基础设施下也是如此。<p>我创建了Sylang来解决这个问题。<p>什么是Sylang？<p>一种基于文本的复杂系统建模语言。编写声明式代码，自动生成可视化图表、可追溯性矩阵、FMEA分析和合规报告。与Git、VSCode和AI代码助手兼容。<p>示例：<p><pre><code> def requirement BrakeActivation
description "系统应在100毫秒内激活刹车"
safetylevel ASIL-D
testedby ref testcase EmergencyBrakeTest
derivedfrom ref safetygoal PreventCollision
allocatedto ref block BrakeController
</code></pre>
这将生成：<p>- 架构图（分解图、内部块图）
- 可追溯性矩阵（需求 ↔ 测试 ↔ 块 ↔ 安全目标）
- 覆盖分析（哪些需求缺少测试？）
- 合规报告（功能安全、ASPICE等）<p>为什么基于文本的建模有效：<p>您的AI代码助手（Cursor、GitHub Copilot、Claude、Gemini）可以：
- 从安全目标生成需求
- 从需求创建测试用例
- 从架构起草FMEA分析
- 在文件间进行语义理解的重构
- 建议缺失的关系<p>有效的Git工作流程：<p><pre><code> git diff requirements.req # 查看更改内容
git merge feature/new-sensors # 合并架构分支
git blame safety-goals.sgl # 谁定义了这个安全目标？
</code></pre>
没有XMI。没有数据库导出。没有PowerPoint。只有可读的文本，生成您所需的一切。<p>您将获得：<p>覆盖整个工程生命周期的23种文件类型：
- 产品线和变体 (.ple, .fml, .vml)
- 架构 (.blk, .fun, .ifc)
- 需求和测试 (.req, .tst)
- 行为模型 (.ucd, .seq, .smd)
- 安全分析 (.haz, .sgl, .sam, .flr, .fta)
- 仪表板和规格 (.dash, .spec)
- 自动化 (.agt, .spr)<p>所有自动生成的可视化图表：特征模型、分解图、时序图、状态机、可追溯性矩阵。<p>当前状态：<p>- 语言稳定（v0.9.27）
- 可用VSCode扩展（在扩展中搜索“Sylang”）
- 与Cursor、GitHub Copilot、Claude、Gemini代码助手兼容
- 图表渲染、可追溯性、覆盖分析正常工作
- 独立开发，兼职，公开构建<p>下载地址：<p><a href="https://marketplace.visualstudio.com/items?itemName=balaji-embedcentrum.sylang" rel="nofollow">https://marketplace.visualstudio.com/items?itemName=balaji-e...</a><p>网站： <a href="https://sylang.dev" rel="nofollow">https://sylang.dev</a><p>GitHub： <a href="https://github.com/balaji-embedcentrum/sylang" rel="nofollow">https://github.com/balaji-embedcentrum/sylang</a><p>欢迎反馈——特别是来自希望他们的建模工具更像代码编辑器的工程师们。
查看原文
Systems engineers model billion-dollar spacecraft, life-saving medical devices, and autonomous vehicles in tools that can't even do a proper diff/merge/version control even with large expensive infrastructure.<p>I built Sylang to address that.<p>What is Sylang?<p>A text-based language for modeling complex systems. Write declarative code, get visual diagrams, traceability matrices, FMEA analyses, and compliance reports automatically. Works with Git, VSCode, and AI code assistants.<p>Example:<p><pre><code> def requirement BrakeActivation
description "System shall activate brakes within 100ms"
safetylevel ASIL-D
testedby ref testcase EmergencyBrakeTest
derivedfrom ref safetygoal PreventCollision
allocatedto ref block BrakeController
</code></pre>
This generates:<p>- Architecture diagrams (decomposition, internal block diagrams)
- Traceability matrix (requirement ↔ test ↔ block ↔ safety goal)
- Coverage analysis (which requirements lack tests?)
- Compliance reports (functional safety, ASPICE, etc.)<p>Why text-based modeling works:<p>Your AI code assistant (Cursor, GitHub Copilot, Claude, Gemini) can:
- Generate requirements from safety goals
- Create test cases from requirements
- Draft FMEA analyses from architecture
- Refactor across files with semantic understanding
- Suggest missing relationships<p>Git workflows that actually work:<p><pre><code> git diff requirements.req # See what changed
git merge feature/new-sensors # Merge architecture branches
git blame safety-goals.sgl # Who defined this safety goal?
</code></pre>
No XMI. No database exports. No PowerPoint. Just readable text that generates everything you need.<p>What you get:<p>23 file types covering the full engineering lifecycle:
- Product lines & variants (.ple, .fml, .vml)
- Architecture (.blk, .fun, .ifc)
- Requirements & tests (.req, .tst)
- Behavioral models (.ucd, .seq, .smd)
- Safety analysis (.haz, .sgl, .sam, .flr, .fta)
- Dashboards & specs (.dash, .spec)
- Automation (.agt, .spr)<p>All auto-generating visual diagrams: feature models, decomposition diagrams, sequence diagrams, state machines, traceability matrices.<p>Current state:<p>- Language stable (v0.9.27)
- VSCode extension available (search "Sylang" in Extensions)
- Works with Cursor, GitHub Copilot, Claude, Gemini code assistants
- Diagram rendering, traceability, coverage analysis working
- Solo dev, part-time, building in public<p>Download at:<p><a href="https://marketplace.visualstudio.com/items?itemName=balaji-embedcentrum.sylang" rel="nofollow">https://marketplace.visualstudio.com/items?itemName=balaji-e...</a><p>Website: <a href="https://sylang.dev" rel="nofollow">https://sylang.dev</a><p>GitHub: <a href="https://github.com/balaji-embedcentrum/sylang" rel="nofollow">https://github.com/balaji-embedcentrum/sylang</a><p>Feedback welcome—especially from engineers who've wished their modeling tools worked more like their code editors.