Product Design 0→1 (Internal Process System) — v2.1
7-step pipeline. Each step has a human checkpoint. Latest confirmed artifact flows to next step.
Domain assumption
Target is ALWAYS a company-internal process management system. Roles and workflows are core. NOT for ToC products.
File layout (under project/)
project/
├── 00-input/{overview, roles, pain-points, expectations}.md
├── 01-user-stories.md
├── 02-flows/{swimlane.md, state-machine.md}
├── 03-er-model.md # 🆕 v2.1
├── 03.5-field-decisions.md
├── 04-modules.md
├── 05-rbac-matrix.md # 🆕 v2.1
├── 06-tracking-plan.md # 🆕 v2.1
└── 07-output/{prototype.html, prd.md}
The 7 steps (each delegated to a reference file)
| Step | Topic | Reference |
|---|---|---|
| 1 | 入口确认 | inline (one sentence) |
| 2 | 输入收集（4 子步 + 领域偏移检测） | references/steps/step2-input-collection.md |
| 3 | 7 条机械校验 | references/steps/step3-validation.md |
| 4 | 用户故事（三段式 + AC） | references/steps/step4-user-stories.md |
| 5 | 泳道图 + 状态机 | references/steps/step5-flows.md |
| 5.5 | 字段决策清单 | references/steps/step5.5-field-decisions.md |
| 6 | 功能模块 + ER 模型 + 字段 | references/steps/step6-modules-er.md |
| 6.5 | RBAC 权限矩阵 + 埋点规划 | references/steps/step6.5-rbac-tracking.md |
| 7 | 高保真原型 + 12 节 PRD | references/steps/step7-output.md |
Cross-cutting rules (always apply)
- 强制卡点：每步产物用
present_files呈现后必须等用户确认（"确认"/"修改 X"），不允许越权进入下一步 - AI 推断必须显式化：所有非用户明示的细节（字段、状态机、权限、埋点）必须通过 Step 5.5 + Step 6.5 让用户拍板
- 回退即重生成：任何回退后，下游产物全部重做，禁止智能合并
[TODO:]即时标注：当某节信息确实不足时，PRD 中用[TODO: 具体需要补什么]占位，绝不编造（吸收自 create-prd）- 领域偏移检测：Step 2.1 前必须扫描会话历史，发现领域切换主动暂停询问 a/b/c
- 不发明：角色/痛点/字段/权限/埋点必须能从用户输入或决策清单溯源
Self-check
完成所有步骤后加载 references/appendices/selfcheck.md 跑自检清单，输出"通过/待补"清单。
End
"0→1 设计完成（含 PRD / 原型 / RBAC / 埋点）。下一步可调用 tech-design skill 进行技术方案设计。"