RMParaIRGroup

### 1. Overview
 The `RMParaIRGroup` table serves as a master lookup (reference) table for categorizing Raw Material Inspection Report (IR) parameters. It defines high-level inspection groups such as dimensional, chemical, mechanical, and metallurgical testing. This categorization is primarily used in quality control modules to organize specific inspection parameters defined in the `itemparamas` table.
 
 ### 2. Column Dictionary
 
 | Column | Type | Nullable | Meaning | Allowed Values | SQL Usage |
 | :--- | :--- | :--- | :--- | :--- | :--- |
 | **ParaGroupCode** | integer | No | Unique identifier for the inspection parameter group. | 1, 2, 3, 4, 5, 6 | Primary Key / Join Key |
 | **ParaGroupName** | string | No | Descriptive name of the inspection category. | "DIMENSIONAL INSPECTION", "CHEMICAL TEST", "MECHANICAL TEST", etc. | Display labels in UI/Reports |
 
 ### 3. Relationships & Join Map
 
 The table acts as a parent/lookup table for parameter definitions.
 
 #### Primary Join (Internal Quality Schema)
 * **dbo.itemparamas**: Joined via `ParaGroupCode`. This relationship links high-level inspection groups (e.g., "CHEMICAL TEST") to specific parameters (e.g., Carbon %, Tensile Strength) defined for specific items.
 
 #### Likely Joins (Inferred from quality workflows)
 * **dbo.rminspectionreport**: While `ParaGroupCode` is not explicitly in the schema for the inspection report results, the reports are likely filtered or grouped by these categories during the Quality Assurance (QA) data entry process via `itemparamas`.
 
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