# Product Model Management

## 1. Function Overview

Product Model Management belongs to the basic module of the MES system. It is used to build core data such as product classification, product basic information, and abnormal/defect categories for the enterprise, providing product basic data support for production planning, work order execution, quality management, and other business modules.

**Core Functions:**

- Product List: Maintain basic product information, support product classification management and multi-level product structure
- Abnormal/Defect Management: Maintain abnormal/defect categories for products, bind device categories for quality anomaly recording during production


**Function Screenshot**:
![Product Model Function Screenshot](/public/image_en/product_model/图片：产品模型功能截图.png)

## 2. Term Explanation

| Term | Definition | Description |
|------|------------|-------------|
| Product List | Product List, records basic product information and classification | Basic data for production execution and quality management |
| Abnormal/Defect | Abnormal/Defect, abnormal situations occurring during production | Including NG (Not Good) and ERR (Error) types |
| Defect Category | Defect Category, classification management of abnormal/defects | Used to distinguish different types of abnormalities |
| Device Category | Device Category, classification management of devices | Abnormal/defects are bound to device categories for anomaly recording on specific devices |
| NG | Not Good, non-conforming product | Products judged as non-conforming during production |
| ERR | Error, error | Error information occurring during system or device operation |

**Data Model Relationship Description:**

```mermaid
flowchart TB
    subgraph Product List
        P1[Product]
        P2[Product]
    end

    subgraph Process Flow
        PF1[Process Flow A]
        PF2[Process Flow B]
    end

    subgraph Abnormal/Defect Management
        D1[NG Defect Category]
        D2[ERR Error Category]
    end

    subgraph Device Category
        DC1[Device Category]
        DC2[Device Category]
    end

    P1 -->|1:N| PF1
    P2 -->|1:N| PF2

    DC1 -->|1:N| D1
    DC2 -->|1:N| D2
```

**Relationship Description:**

| Relationship Type | Description |
|------------------|-------------|
| Product List → Process Flow | **1 to N**: A product can be configured with multiple process flows |
| Device Category → Abnormal/Defect Management | **1 to N**: A device category can be configured with multiple abnormal/defect categories |


## 3. Product Model Interaction Flow

### 3.1 Product List Management

#### 3.1.1 Product List Description

Product list is core data recording basic product information, including product model, product name, etc. It is the foundation of enterprise production execution and quality management.

**Product List Characteristics:**

- Relevance: Product information can be referenced by process flows

**Function Screenshot**:
![Product List Screenshot](/public/image_en/product_model/图片：产品列表截图.png)

#### 3.1.2 Add Product

**Operation Steps:**

1. Go to [Production Configuration] → [Product Model] → [Product List]
2. Click [Add] button
3. Fill in basic product information
4. Click [Save] to complete product creation

**Field Description:**

| Field | Description | Required |
|-------|-------------|----------|
| Product Model | Unique identification code of the product | Yes |
| Product Name | Name of the product | Yes |
| Remarks | Other supplementary information | No |

**[Important]** The product model cannot be modified after creation. Please confirm carefully when creating.
**[Important]** Once a product is referenced by a process flow or work order, it cannot be deleted.

**Function Screenshot**:
![Add Product Screenshot](/public/image_en/product_model/图片：新增产品截图.png)

#### 3.1.3 Product Query

**Query Conditions:**

| Query Condition | Description |
|----------------|-------------|
| Product Model | Exact query by product model |
| Product Name | Fuzzy query by product name |
| Product Category | Filter by product category |

**Function Screenshot**:
![Product Query List Screenshot](/public/image_en/product_model/图片：产品查询列表截图.png)

### 3.2 Abnormal/Defect Management

#### 3.2.1 Abnormal/Defect Management Description

Abnormal/Defect Management is used to record abnormal situations occurring during production, including two types: NG (Not Good - non-conforming products) and ERR (Error - errors). Abnormal/defect categories are bound to device categories for anomaly recording in specific device processes.

**Abnormal/Defect Types:**

| Type | Description |
|------|-------------|
| NG | Not Good, non-conforming product, products judged as non-conforming during production |
| ERR | Error, system or device runtime errors |

**Function Screenshot**:
![Abnormal/Defect Management List Screenshot](/public/image_en/product_model/图片：异常不良管理列表截图.png)

#### 3.2.2 Add Abnormal/Defect Category

**Operation Steps:**

1. Go to [Production Configuration] → [Product Model] → [Abnormal/Defect Management]
2. Click [Add] button
3. Select abnormal type (NG/ERR)
4. Fill in abnormal/defect category information
5. Select the bound device category
6. Click [Save] to complete abnormal/defect category creation

**Field Description:**

| Field | Description | Required |
|-------|-------------|----------|
| Abnormal Category Code | Unique identification code of the abnormal category | Yes |
| Abnormal Category Name | Name of the abnormal category, e.g., "Short Circuit", "Open Circuit" | Yes |
| Abnormal Type | NG (Non-conforming) / ERR (Error) | Yes |
| Device Category | Bound device category for anomaly recording on specific devices | Yes |
| Remarks | Other supplementary information | No |

**[Important]** The abnormal category code cannot be modified after creation.
**[Important]** Once an abnormal/defect category is used, it cannot be deleted.

**Function Screenshot**:
![Add Abnormal/Defect Category Screenshot](/public/image_en/product_model/图片：新增异常不良类别截图.png)

#### 3.2.3 Abnormal/Defect Category Query

**Query Conditions:**

| Query Condition | Description |
|----------------|-------------|
| Abnormal Category Code | Exact query by abnormal category code |
| Abnormal Category Name | Fuzzy query by abnormal category name |
| Abnormal Type | Filter by abnormal type: NG / ERR |
| Device Category | Filter by bound device category |

**Function Screenshot**:
![Abnormal/Defect Category Query List Screenshot](/public/image_en/product_model/图片：异常不良类别查询列表截图.png)

#### 3.2.4 Import Abnormal/Defect Categories

The import function supports batch importing abnormal/defect category data to improve data maintenance efficiency.

**Operation Steps:**

1. Go to [Production Configuration] → [Product Model] → [Abnormal/Defect Management]
2. Click [Import] button
3. Download the import template
4. Fill in abnormal/defect category data according to the template format
5. Click [Select File] to upload the completed Excel file
6. Click [Start Import] to execute data import
7. View the import result report

**Import Template Field Description:**

| Field | Description | Required | Example |
|-------|-------------|----------|---------|
| Abnormal Category Code | Unique identification code of the abnormal category | Yes | NG-001 |
| Abnormal Category Name | Name of the abnormal category | Yes | Short Circuit |
| Abnormal Type | NG (Non-conforming) / ERR (Error) | Yes | NG |
| Device Category Code | Bound device category code | Yes | DEV-SMT |
| Remarks | Other supplementary information | No | - |

**[Note]** Ensure the device category exists before importing.
**[Tip]** It is recommended to import a small amount of data first for verification, and then perform large-scale import after confirming the format is correct.

**Function Screenshot**:
![Import Abnormal/Defect Category Dialog Screenshot](/public/image_en/product_model/图片：导入异常不良类别对话框截图.png)

#### 3.2.5 Batch Delete Abnormal/Defect Categories

The batch delete function supports deleting multiple abnormal/defect categories at once to improve data cleaning efficiency.

**Operation Steps:**

1. Go to [Production Configuration] → [Product Model] → [Abnormal/Defect Management]
2. Check the abnormal/defect categories to delete in the list (multiple selection allowed)
3. Click [Batch Delete] button
4. Confirm deletion in the pop-up confirmation dialog
5. Click [OK] to execute batch deletion

**[Note]** Used abnormal/defect categories cannot be deleted.
**[Note]** Delete operations cannot be recovered. Please confirm carefully before deleting.
**[Tip]** It is recommended to query whether the category has been referenced by work orders or anomaly records before deletion.

**Function Screenshot**:
![Batch Delete Confirmation Dialog Screenshot](/public/image_en/product_model/图片：批量删除确认对话框截图.png)

### 3.3 Abnormal/Defect Management Description

Abnormal/Defect Management is independent of products and process flows, and only has a binding relationship with device categories. Abnormal/defect categories are used to record abnormal situations occurring in devices during production.

**[Important]** Abnormal/Defect Management is not associated with process flows, but is directly bound to device categories.
**[Important]** Multiple abnormal/defect categories can be bound to the same device category to achieve unified management of anomaly classification.