Version: Summer 2025 Forward with Her Program

Practical Projects

Project 1: Academic Paper Diagram Suite

Project Objective

Create a complete diagram suite for an academic paper on machine learning, including research methodology flowcharts, experimental design diagrams, data analysis workflows, and result comparison charts.

1.1 Research Methodology Flowchart

graph TB
  Start[研究问题定义] --> Literature[文献调研与分析]
  Literature --> Gap[研究空白识别]
  Gap --> Hypothesis[提出研究假设]
  
  Hypothesis --> Design[实验设计]
  Design --> Data[数据收集]
  
  Data --> Split[数据集划分]
  Split --> Train[训练集 70%]
  Split --> Valid[验证集 15%]
  Split --> Test[测试集 15%]
  
  Train --> Preprocess[数据预处理]
  Preprocess --> Feature[特征工程]
  
  Feature --> Models[模型选择]
  Models --> RF[随机森林]
  Models --> SVM[支持向量机]
  Models --> DL[深度学习]
  
  RF --> Training1[模型训练]
  SVM --> Training2[模型训练]
  DL --> Training3[模型训练]
  
  Training1 --> Validation[验证集评估]
  Training2 --> Validation
  Training3 --> Validation
  
  Validation --> Tuning[超参数调优]
  Tuning --> Best[最佳模型选择]
  Best --> Testing[测试集评估]
  
  Testing --> Analysis[结果分析]
  Analysis --> Comparison[对比分析]
  Comparison --> Conclusion[结论与讨论]
  Conclusion --> Paper[论文撰写]
  
  style Start fill:#e1f5fe
  style Paper fill:#e8f5e9
  style Best fill:#fff3e0

1.2 Experimental Design Diagram

1.3 Data Processing Pipeline

sequenceDiagram
  participant Raw as 原始数据
  participant Clean as 数据清洗
  participant Transform as 数据转换
  participant Feature as 特征提取
  participant Scale as 特征缩放
  participant Select as 特征选择
  participant Model as 模型输入
  
  Raw->>Clean: 缺失值处理
  Clean->>Clean: 异常值检测
  Clean->>Transform: 数据类型转换
  Transform->>Feature: 特征工程
  Feature->>Scale: 标准化/归一化
  Scale->>Select: 特征重要性分析
  Select->>Model: 最终特征集
  
  Note over Clean: 删除重复数据<br/>填充缺失值<br/>异常值处理
  Note over Feature: 多项式特征<br/>交互特征<br/>领域特征
  Note over Select: PCA<br/>互信息<br/>递归特征消除

1.4 Results Visualization

pie title 模型性能对比（准确率）
  "随机森林" : 92.5
  "支持向量机" : 89.3
  "深度学习" : 94.7
  "集成模型" : 96.2

Project Deliverables

Flowchart Collection: PDF format, 300 DPI
LaTeX Source Code: Ready for direct embedding in papers
SVG Vector Graphics: Support lossless scaling
Documentation: Diagram usage guide

Project 2: System Architecture Documentation

Project Objective

Create complete architecture documentation diagrams for a microservices e-commerce system, including system architecture diagrams, data flow diagrams, API sequence diagrams, and deployment architecture diagrams.

2.1 Overall System Architecture

You: Generate an overall architecture diagram for the e-commerce system

Gemini: I'll create a complete e-commerce system architecture diagram:

```mermaid
graph TB
  subgraph "前端应用"
      Web[Web商城]
      Mobile[移动APP]
      Admin[管理后台]
      Merchant[商家平台]
  end
  
  subgraph "接入层"
      CDN[CDN加速]
      WAF[Web防火墙]
      LB[负载均衡]
      Gateway[API网关]
  end
  
  subgraph "微服务层"
      subgraph "核心服务"
          User[用户服务]
          Product[商品服务]
          Order[订单服务]
          Payment[支付服务]
      end
      
      subgraph "业务服务"
          Cart[购物车]
          Search[搜索服务]
          Recommend[推荐服务]
          Inventory[库存服务]
      end
      
      subgraph "支撑服务"
          Notification[通知服务]
          File[文件服务]
          Report[报表服务]
          Workflow[工作流服务]
      end
  end
  
  subgraph "中间件"
      MQ[消息队列]
      Cache[分布式缓存]
      Config[配置中心]
      Registry[服务注册]
  end
  
  subgraph "数据存储"
      MySQL[(MySQL集群)]
      MongoDB[(MongoDB)]
      Redis[(Redis集群)]
      ES[(ElasticSearch)]
  end
  
  Web --> CDN
  Mobile --> CDN
  Admin --> WAF
  Merchant --> WAF
  CDN --> LB
  WAF --> LB
  LB --> Gateway
  
  Gateway --> User
  Gateway --> Product
  Gateway --> Order
  Gateway --> Payment
  
  Order --> MQ
  Payment --> MQ
  MQ --> Inventory
  MQ --> Notification
  
  User --> MySQL
  Product --> MongoDB
  Search --> ES
  Cart --> Redis
```

2.2 Data Flow Diagram

graph LR
  subgraph "数据采集"
      App[应用日志]
      User[用户行为]
      Trans[交易数据]
  end

  subgraph "数据处理"
      Kafka[Kafka队列]
      Flink[实时处理]
      Spark[批处理]
  end

  subgraph "数据存储"
      HDFS[HDFS存储]
      Hive[数据仓库]
      HBase[NoSQL存储]
  end

  subgraph "数据服务"
      OLAP[OLAP分析]
      API[数据API]
      Report[报表系统]
  end

  App --> Kafka
  User --> Kafka
  Trans --> Kafka

  Kafka --> Flink
  Kafka --> Spark

  Flink --> HBase
  Spark --> HDFS
  HDFS --> Hive

  HBase --> API
  Hive --> OLAP
  OLAP --> Report

2.3 Core API Sequence Diagram

sequenceDiagram
  participant U as 用户
  participant G as API网关
  participant A as 认证服务
  participant O as 订单服务
  participant I as 库存服务
  participant P as 支付服务
  participant N as 通知服务
  
  U->>G: 提交订单请求
  G->>A: 验证Token
  A-->>G: Token有效
  
  G->>O: 创建订单
  O->>I: 检查库存
  I-->>O: 库存充足
  O->>I: 锁定库存
  I-->>O: 锁定成功
  
  O->>P: 创建支付单
  P-->>O: 支付单创建成功
  O-->>G: 订单创建成功
  G-->>U: 返回订单信息
  
  U->>G: 支付请求
  G->>P: 执行支付
  P->>P: 调用第三方支付
  P-->>G: 支付成功
  G-->>U: 支付完成
  
  P->>O: 更新订单状态
  O->>I: 扣减库存
  O->>N: 发送通知
  N-->>U: 订单确认邮件

Project 3: Business Plan Diagrams

Project Objective

Create professional diagrams for a startup business plan, including business model canvas, market analysis charts, product roadmap, and organizational structure diagrams.

3.1 Business Model Canvas

graph TB
  subgraph "商业模式画布"
      subgraph "基础设施"
          KP[关键合作伙伴<br/>・技术供应商<br/>・物流合作<br/>・支付平台]
          KA[关键活动<br/>・平台运营<br/>・技术开发<br/>・市场推广]
          KR[关键资源<br/>・技术团队<br/>・平台系统<br/>・用户数据]
      end
      
      subgraph "产品价值"
          VP[价值主张<br/>・一站式解决方案<br/>・优质用户体验<br/>・性价比高]
      end
      
      subgraph "客户界面"
          CR[客户关系<br/>・自助服务<br/>・社区支持<br/>・专属客服]
          CH[渠道通路<br/>・线上平台<br/>・移动应用<br/>・合作渠道]
          CS[客户细分<br/>・个人用户<br/>・中小企业<br/>・大型企业]
      end
      
      subgraph "财务状况"
          C$[成本结构<br/>・技术开发<br/>・运营成本<br/>・营销费用]
          R$[收入来源<br/>・订阅费用<br/>・交易佣金<br/>・增值服务]
      end
  end
  
  KP --> KA
  KA --> VP
  KR --> VP
  VP --> CR
  VP --> CH
  CR --> CS
  CH --> CS
  KA --> C$
  KR --> C$
  CS --> R$

3.2 Market Growth Forecast

gantt
  title 产品发展路线图
  dateFormat YYYY-MM-DD
  axisFormat %Y-Q%q

  section 产品开发
  MVP版本           :done, mvp, 2024-01-01, 90d
  功能完善           :done, feature, after mvp, 120d
  2.0版本开发        :active, v2, 2024-07-01, 150d
  3.0版本规划        :v3, 2025-01-01, 180d

  section 市场拓展
  种子用户获取       :done, seed, 2024-02-01, 60d
  市场推广           :done, market, 2024-04-01, 90d
  规模化增长         :active, scale, 2024-07-01, 180d
  国际化             :intl, 2025-01-01, 365d

  section 融资计划
  天使轮             :done, angel, 2024-01-15, 30d
  Pre-A轮            :done, prea, 2024-06-01, 45d
  A轮                :active, arounda, 2024-11-01, 60d
  B轮                :roundb, 2025-06-01, 60d

3.3 Organizational Structure

graph TB
  CEO[CEO<br/>首席执行官]
  
  CEO --> CTO[CTO<br/>首席技术官]
  CEO --> COO[COO<br/>首席运营官]
  CEO --> CFO[CFO<br/>首席财务官]
  CEO --> CMO[CMO<br/>首席营销官]
  
  CTO --> Dev[开发团队<br/>15人]
  CTO --> QA[测试团队<br/>5人]
  CTO --> DevOps[运维团队<br/>3人]
  
  COO --> Product[产品团队<br/>8人]
  COO --> Support[客服团队<br/>10人]
  COO --> Operations[运营团队<br/>6人]
  
  CFO --> Finance[财务部<br/>4人]
  CFO --> Legal[法务部<br/>2人]
  
  CMO --> Marketing[市场部<br/>7人]
  CMO --> Sales[销售部<br/>12人]
  CMO --> BD[商务拓展<br/>5人]
  
  style CEO fill:#e1f5fe
  style CTO fill:#fff3e0
  style COO fill:#f3e5f5
  style CFO fill:#e8f5e9
  style CMO fill:#fce4ec

Comprehensive Exercises

Exercise Tasks

Exercise 1: Technical Documentation

Create for your open source project:

System architecture diagram
API flow diagram
Deployment architecture diagram
Data model diagram

Exercise 2: Academic Diagrams

Prepare for research paper:

Experimental workflow diagram
Algorithm flowchart
Data analysis diagram
Results comparison chart

Exercise 3: Business Presentation

Create for project reporting:

Project timeline
Team structure diagram
Business process diagram
Financial analysis chart

Evaluation Criteria

Excellent Work Standards

Accuracy: Information is accurate, logic is clear
Aesthetics: Coordinated colors, reasonable layout
Standards Compliance: Meets industry standards
Innovation: Has unique presentation format
Practicality: Effectively communicates information

Project Template Downloads

Downloadable Resources

Mermaid diagram template collection
Draw.io style library
Academic paper diagram examples
System architecture diagram templates
Business diagram templates Visit GitHub Repository to get all templates

Course Completion

Congratulations on completing the diagram creation course! You have now mastered: ✓ Mermaid code-based diagram creation ✓ Draw.io professional diagram design ✓ AI-assisted diagram creation techniques ✓ Diagram applications in different scenarios ✓ Practical project experience

Continue Learning

Recommended learning paths:

Deep dive into data visualization (D3.js, ECharts)
Explore UML modeling tools (PlantUML, StarUML)
Learn infographic design
Master interactive charts (Plotly, Bokeh)

Project 1: Academic Paper Diagram Suite​

Project Objective​

1.1 Research Methodology Flowchart​

1.2 Experimental Design Diagram​

1.3 Data Processing Pipeline​

1.4 Results Visualization​

Project 2: System Architecture Documentation​

Project Objective​

2.1 Overall System Architecture​

2.2 Data Flow Diagram​

2.3 Core API Sequence Diagram​

Project 3: Business Plan Diagrams​

Project Objective​

3.1 Business Model Canvas​

3.2 Market Growth Forecast​

3.3 Organizational Structure​

Comprehensive Exercises​

Exercise Tasks​

Exercise 1: Technical Documentation​

Exercise 2: Academic Diagrams​

Exercise 3: Business Presentation​

Evaluation Criteria​

Project Template Downloads​

Downloadable Resources​

Course Completion​

Continue Learning​

Project 1: Academic Paper Diagram Suite

Project Objective

1.1 Research Methodology Flowchart

1.2 Experimental Design Diagram

1.3 Data Processing Pipeline

1.4 Results Visualization

Project 2: System Architecture Documentation

Project Objective

2.1 Overall System Architecture

2.2 Data Flow Diagram

2.3 Core API Sequence Diagram

Project 3: Business Plan Diagrams

Project Objective

3.1 Business Model Canvas

3.2 Market Growth Forecast

3.3 Organizational Structure

Comprehensive Exercises

Exercise Tasks

Exercise 1: Technical Documentation

Exercise 2: Academic Diagrams

Exercise 3: Business Presentation

Evaluation Criteria

Project Template Downloads

Downloadable Resources

Course Completion

Continue Learning